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Topical›Biology 9700›Cell structure›Cells as the basic units of living organisms›Paper 1

Cells as the basic units of living organisms — Paper 1 · A Level Biology 9700

1.2· 393 questions · 393 marks · 472 min · 2004–2025· Multiple choice

Every Cambridge A Level Biology Paper 1 question on cells as the basic units of living organisms, laid out as 118 A4 pages with the mark scheme below. Nothing is left out. Free to read, no account.

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Question 1: The diagram shows the ultrastructure of a eukaryotic cell. Which organelle does not contain nucleic acid? A D C BQuestion 2: Which components are present in prokaryotic cells? A chloroplasts, DNA, nuclear envelope B chromosomes, mitochondria, nuclear envelope C cy…Question 3: Which structures are present in large numbers at sites of active transport? A Golgi bodies B lysosomes C mitochondria D rough endoplasmic r…1 / 118
Question 4: ~The diagram shows a drawing of an electron micrograph of a cell. ; ; nucleus mitochondrion > — ,, SS SS lysosome ——~--(® Swe ' . cyto…Question 5: In which animal cells would Golgi apparatus be most abundant? A ciliated epithelial cells B goblet cells C red blood cells D smooth muscle …Question 6: Which is a feature of all prokaryotic cells? A absence of cell surface membrane B division by mitosis C presence of mitochondria D presence…Question 7: What do the causative agents of HIV/AIDS, malaria and TB have in common? they have a cell they have they have th ; ; ey respire surface me…2 / 118
Question 8: The diagram shows an electron micrograph of a typical animal cell. X What is the function of the membrane system labelled X? A carbohydrate…Question 9: The diagram shows an electron micrograph of a plant cell. X Y Z What do structures X, Y and Z contain? X Y Z A air chlorophyll protein B mi…3 / 118
Question 10: Which organelles are found in the cells of both eukaryotes and prokaryotes? A chloroplasts B Golgi apparatus C mitochondria D ribosomesQuestion 11: The diagram is taken from an electron micrograph of a cell which secretes digestive enzymes. Where are these enzymes made? A B C DQuestion 12: A student is asked to study two photographs, taken at the same magnification, of a palisade mesophyll cell, one using a high quality light …Question 13: What is the order of size of cell components? largest smallest A centrioles mitochondria lysosomes nucleoli B mitochondria nucleoli lysosom…4 / 118
Question 14: When mucus is secreted from a goblet cell in the trachea, these events take place. 1 addition of carbohydrate to protein 2 fusion of the ve…Question 15: Which structure is present in cells of eukaryotes but not present in cells of prokaryotes? A 70s ribosome B chromatin C mesosome D plasmid5 / 118
Question 16: A piece of mammalian tissue was homogenised and subjected to differential centrifugation to yield four subcellular fractions. The activity …Question 17: From which cell organelle are nucleic acids absent? A chloroplast B Golgi apparatus C mitochondrion D ribosomeQuestion 18: Mitochondria are thought to have evolved from prokaryotic cells that were ingested by an ancestral cell. Which feature have the prokaryotes…Question 19: = Which combination is found in a prokaryotic cell? endoplasmic reticulum DNA RNA nucleus A JV JV x x B J x x y Cc x V4 J x D x x J V ke…Question 20: Which is a feature of all prokaryotic cells? A absence of cell surface membrane B division by mitosis C presence of cellulose cell wall D p…6 / 118
Question 21: What is a function of the smooth endoplasmic reticulum? A protein synthesis B protein transport C steroid synthesis D steroid transportQuestion 22: The diagram below is drawn from an electron micrograph of an animal cell. Which represents the same cell, seen under a light (optical) micr…7 / 118
Question 23: Which structures are found in both animal and plant cells? 1 centriole 2 lysosome 3 nucleolus 4 vacuole A 1 and 3 only B 2 and 4 only C 2, …Question 24: Which observations suggest that a cell is eukaryotic? 0 Oo WwW > cytoplasm includes endoplasmic reticulum v x x v protein molecules ar…8 / 118
Question 25: Membranes within and at the surface of cells have different roles. The diagram allows the identification of the various organelles within t…9 / 118
Question 26: The diagram below is drawn from an electron micrograph of an animal cell. Which represents the same cell, seen under a light (optical) micr…Question 27: Which observations suggest that a cell is eukaryotic? cytoplasm protein ribosomes includes molecules are distributed endoplasmic associate…10 / 118
Question 28: Which structures are found in both animal and plant cells? 1 centriole 2 lysosome 3 nucleolus 4 vacuole A 1 and 3 only B 2 and 4 only C 2, …Question 29: Which structures are measured using these units? 10–3 m 10–6 m 10–9 m A chloroplast ribosome nucleus B nucleus chloroplast xylem vessel C r…11 / 118
Question 30: Membranes within and at the surface of cells have different roles. The diagram allows the identification of the various organelles within t…Question 31: Which observations suggest that a cell is eukaryotic? 0 Oo WwW > cytoplasm includes endoplasmic reticulum v x x v protein molecules ar…12 / 118
Question 32: Which structures are found in both animal and plant cells? 1 centriole 2 lysosome 3 nucleolus 4 vacuole A 1 and 3 only B 2 and 4 only C 2, …Question 33: Membranes within and at the surface of cells have different roles. The diagram allows the identification of the various organelles within t…13 / 118
Question 34: Which of the cell organelles, when appropriately stained, will be clearly visible under the high power (x400) of the light microscope? lys…Question 35: Which is correct about the organelles listed in the table? carries out contains contains transcription enzymes ribosomes 1 lysosomes no yes…Question 36: What are the characteristics of a prokaryotic cell? DNA endoplasmic ribosomal plasmids structure reticulum size A circular absent present s…Question 37: Which cell organelle does not contain nucleic acid? A chloroplast B Golgi apparatus C lysosome D ribosome14 / 118
Question 38: The diameter of living cells varies considerably. The typical diameters are a eukaryote, such as a white blood cell 1.5 × 101 µm a prokaryo…Question 39: Cells consist of a number of different components. Which row shows the components present (/ ) in both a prokaryotic and eukaryotic cell? …Question 40: Which structures are present in a typical plant cell? centrioles cilia mitochondria vacuole A v v x x B v x x v Cc x v v x D x x v v key …Question 41: Plant cells are stained and then viewed through a light microscope. Which structures would be clearly visible at a magnification of ×400? A…15 / 118
Question 42: Which type of cell will contain the highest proportion of single membrane-bound structures? A ciliated epithelial cell B goblet cell C red …Question 43: In an animal cell, which process is dependent upon cell surface area and which process is dependent upon cell volume? cell surface area cel…Question 44: Membranous sacs containing products of metabolism are formed by the endoplasmic reticulum in cells. Where are these products used? A inside…Question 45: Which of the structures are found in photosynthetic prokaryotes? 1 cell surface membrane 2 cellulose wall 3 mesosomes 4 ribosomes 5 chlorop…16 / 118
Question 46: Which structures are present in a typical plant cell? centrioles cilia mitochondria vacuole A v v x x B v x x v Cc x v v x D x x v v key …Question 47: Which type of cell will contain the highest proportion of single membrane-bound structures? A ciliated epithelial cell B goblet cell C red …Question 48: In an animal cell, which process is dependent upon cell surface area and which process is dependent upon cell volume? cell surface area cel…Question 49: What is the diameter of a typical prokaryote, such as Streptococcus? A 7.5 × 101 nm B 7.5 × 102 nm C 7.5 × 100 µm D 7.5 × 101 µmQuestion 50: Which cell components contain ribosomes? 1 chloroplast 2 mitochondrion 3 nucleus 4 cytoplasm A 1, 2, 3 and 4 B 1, 2 and 3 only C 1 and 2 on…17 / 118
Question 51: Where would cristae be found in a cell? 1 endoplasmic reticulum 2 Golgi apparatus 3 mitochondrion A 1 and 2 B 1 and 3 C 2 and 3 D 3 onlyQuestion 52: Which cell components are present in all prokaryotic cells? cell surface endoplasmic cell wall flagellum membrane reticulum A v v x v B v …Question 53: In general, eukaryotic cells undergo division much slower than prokaryotic cells. What is the reason for this? A Eukaryotes break down the …Question 54: In general, eukaryotic cells undergo division much slower than prokaryotic cells. What is the reason for this? A Eukaryotes break down the …Question 55: What is the diameter of a typical prokaryote, such as Streptococcus? A 7.5 × 101 nm B 7.5 × 102 nm C 7.5 × 100 µm D 7.5 × 101 µm18 / 118
Question 56: Which cell components are present in all prokaryotic cells? cell surface endoplasmic cell wall flagellum membrane reticulum A v v x v B v …Question 57: Where would cristae be found in a cell? 1 endoplasmic reticulum 2 Golgi apparatus 3 mitochondrion A 1 and 2 B 1 and 3 C 2 and 3 D 3 onlyQuestion 58: Which cell components contain ribosomes? 1 chloroplast 2 mitochondrion 3 nucleus 4 cytoplasm A 1, 2, 3 and 4 B 1, 2 and 3 only C 1 and 2 on…Question 59: What are always present in prokaryote cells? A capsules B flagella C pili D ribosomes19 / 118
Question 60: The following are all features of eukaryotic cells. 1 chloroplast 2 endoplasmic reticulum 3 lysosome 4 mitochondrion 5 nucleus Which of the…Question 61: Which range of sizes would include most eukaryotic cells? A 1 × 102 nm to 1 µm B 1 µm to 1 × 101 µm C 1 × 101 µm to 1 × 102 µm D 1 × 102 µ…Question 62: Which structure is present in all eukaryotic cells but not present in prokaryotic cells? A 70S ribosome B cell wall C chromatin D plasmidQuestion 63: What are always present in prokaryote cells? A capsules B flagella C pili D ribosomes20 / 118
Question 64: The following are all features of eukaryotic cells. 1 chloroplast 2 endoplasmic reticulum 3 lysosome 4 mitochondrion 5 nucleus Which of the…Question 65: The diagram is a drawing from an electron micrograph of a cell. Which structure indicates that this is a secretory cell? A B C DQuestion 66: Which of the following are found in both eukaryotic and prokaryotic cells? 1 cellulose 2 deoxyribose 3 lipids 4 ribose A 1, 2 and 3 B 1, 2 …Question 67: Which row correctly identifies all the locations of ribosomes in a eukaryotic cell? attached to free in in attached to cytoplasm | mitoch…21 / 118
Question 68: What are the characteristics of a prokaryotic cell? endoplasmic reticulum genetic material A absent DNA B absent RNA C present DNA D presen…Question 69: The following are all features of eukaryotic cells. 1 chloroplast 2 Golgi apparatus 3 lysosome 4 mitochondrion 5 nucleus Which of these has…Question 70: Plant cells are fixed, stained and viewed through a light microscope. What would be clearly visible at x400 magnification? A cristae of mit…Question 71: Which size range would include most prokaryotic cells? A B C D 1 nm 100 nm 1 µm 100 µm 1 mmQuestion 72: Which feature is found in both prokaryotic and plant cells? A cell wall B DNA bound to protein C endoplasmic reticulum D Golgi apparatus22 / 118
Question 73: What leaves the nucleus through the pores in the nuclear envelope? 1 DNA 2 mRNA 3 ribosomes A 1 only B 2 only C 1 and 2 D 2 and 3Question 74: What is the function of nucleoli? A formation and breakdown of the nuclear envelope B formation of centromeres C formation of ribosomes D f…Question 75: Which organelles are required for the formation of the hydrolytic enzymes found in lysosomes? mitochondria A B C D rough Golgi endoplasmic …Question 76: The diagram is taken from an electronmicrograph of a cell which secretes enzymes. Where are these enzymes made? A B C D23 / 118
Question 77: The diagram below is drawn from an electronmicrograph of an animal cell. Which represents the same cell, seen under a light microscope at ×…Question 78: Which features enable an organism to be identified as a prokaryote? 1 cell wall 2 circular DNA 3 nucleus 4 ribosomes A 2 only B 3 only C 1 …24 / 118
Question 79: The diagram shows an electronmicrograph of a typical animal cell. X What is the function of the membrane system labelled X? A lipid synthes…Question 80: An animal cell and a plant cell are placed in distilled water. The animal cell swells and bursts, while the plant cell swells but does not …Question 81: Which plant cells do not contain a nucleus? 1 companion cells 2 sieve tube elements 3 xylem vessel elements A 1 and 2 only B 1 and 3 only C…25 / 118
Question 82: The electronmicrograph shows part of two cells. W X Y Which of the labelled features enable these cells to be identified as eukaryotic? A W…Question 83: When mucus is secreted from a goblet cell in the trachea, these events take place. 1 addition of carbohydrate to protein 2 fusion of the ve…Question 84: What is a function of the smooth endoplasmic reticulum? A antibody synthesis B enzyme synthesis C protein synthesis D steroid synthesis26 / 118
Question 85: The electronmicrograph shows part of an animal cell. What will be synthesised in large quantities in this cell? 1 ATP 2 glucose 3 RNA A 1 o…Question 86: Which statements about a typical eukaryotic cell are correct? 1 It is smaller than 2 µm. 2 It has a nucleolus. 3 It has linear DNA. 4 It on…Question 87: Which animal cells would have the most Golgi apparatus? A ciliated epithelial cells B goblet cells C red blood cells D smooth muscle cellsQuestion 88: Which row shows features of a typical eukaryotic cell? cell size nucleus DNA ribosome size A < 2µm absent linear large 80S B < 2µm present …27 / 118
Question 89: Goblet cells are found in the trachea. Which organelles would be found in large numbers in a goblet cell? 1 lysosomes 2 mitochondria 3 roug…Question 90: Which statements about a typical prokaryotic cell are correct? 1 It is smaller than 2 µm. 2 It has a nucleus. 3 Its has circular DNA. 4 It …Question 91: Where would cisternae be found in a cell? 1 endoplasmic reticulum 2 Golgi apparatus 3 mitochondrion A 1 and 2 B 1 and 3 C 2 and 3 D 1 onlyQuestion 92: What is the order of size of cell structures? largest smallest A centrioles ribosomes lysosomes nucleoli B lysosomes nucleoli centrioles ri…28 / 118
Question 93: The diagram shows some similarities between chloroplasts, mitochondria and typical prokaryotes. 1 2 3 4 5 Which row is correct? 1 2 3 4 5 A…Question 94: Which organelle does not contain a partially permeable membrane? A Golgi apparatus B lysosome C mitochondrion D ribosomeQuestion 95: The diagram shows an electron micrograph of a plant cell. X Y Z What do structures X, Y and Z contain? X Y Z A air starch DNA and RNA B cel…29 / 118
Question 96: An amino acid enters a cell and is then used to synthesise an enzyme secreted by the cell. What is the sequence of cell structures involved…Question 97: The diagram shows some similarities between chloroplasts, mitochondria and typical prokaryotes. 1 2 3 4 5 Which row is correct? 1 2 3 4 5 A…Question 98: The diameter of living cells varies considerably. The diameter of a typical eukaryotic cell is 1.5 × 101 µm. The diameter of a typical prok…30 / 118
Question 99: In order to complete the sentence below, what is the correct process and cell structure? Cells which have a high rate of ……1…… will have ma…Question 100: A cell secreting glycoproteins is supplied with radioactively-labelled glucose which is detected in the cytoplasm first. In which organelle…Question 101: The diagram shows some similarities between chloroplasts, mitochondria and typical prokaryotes. 1 2 3 4 5 Which row is correct? 1 2 3 4 5 A…31 / 118
Question 102: Which part of the cell is often continuous with the rough endoplasmic reticulum? A cell surface membrane B Golgi apparatus C mitochondrion …Question 103: Which structures are found in both chloroplasts and mitochondria? 1 70S ribsomes 2 80S ribsomes 3 circular DNA A 1 and 3 B 2 and 3 C 1 only…Question 104: Tay-Sachs disease occurs when cells are unable to produce an enzyme, leading to a build up of certain lipids in cells. Which cell structure…Question 105: Which structures are present in a cell of Plasmodium? Golgi ribosomes apparatus B A C D mitochondria32 / 118
Question 106: The statements are all descriptions of cell structures. 1 surrounded by a single membrane and enclosing a large fluid-filled space 2 surrou…Question 107: Which structures are found in both typical eukaryotic cells and typical prokaryotic cells? 1 70S ribsomes 2 80S ribosomes 3 circular DNA A …Question 108: Which sequence shows some of the stages in the production and secretion of an enzyme? A Golgi apparatus → ribosome → rough endoplasmic …Question 109: Density gradient centrifuges are used to separate cell structures by their relative density. Larger cell structures have greater density an…33 / 118
Question 110: Red blood cells have a diameter of 7000 nm. Pancreatic cells have a diameter of diameter 35 µm. What is correct about the relative sizes of…Question 111: Which cell structure shown in the electronmicrograph is the site of protein modification and packaging? D A C BQuestion 112: The diagram shows some similarities between typical prokaryotes, chloroplasts and mitochondria. 1 2 3 4 5 Which is correct? 1 2 3 4 5 A chl…34 / 118
Question 113: The diagram shows a high-power drawing of a bacterium. capsule cell wall cell membrane ribosome DNA Which three components are found in bot…Question 114: Which structures are found in typical eukaryotic cells? 1 70S ribosomes 2 80S ribosomes 3 linear DNA (chromosomes) 4 circular DNA A 1, 2, 3…Question 115: What is the function of the nucleolus? A The formation and breakdown of the nuclear envelope. B The formation of rough endoplasmic reticulu…Question 116: What is the function of plasmodesmata in plant cells? A to act as a barrier to water soluble substances B to allow active transport of ions…Question 117: Which size of ribosome is found in both chloroplasts and mitochondria? A 60S B 70S C 80S D 90S35 / 118
Question 118: Which function is correct for the description of the cell structure? function cell structure A organises microtubules to membrane-bound sac…Question 119: Ribosomes consist of two subunits, each containing rRNA. An analysis of all the 70S ribosomes from a single cell of the bacterium, Escheric…Question 120: What are found in both mitochondria and typical prokaryotic cells? A 70S ribosomes and circular DNA B 70S ribosomes only C 80S ribosomes an…Question 121: Which comparison of a phloem companion cell with a B-lymphocyte is correct? A Both cell types have proteins embedded in their cell surface …Question 122: Which structures in plant cells have a double membrane? A chloroplasts and vacuoles B lysosomes and nuclei C mitochondria and vacuoles D nu…36 / 118
Question 123: What is the diameter of a typical prokaryote, such as Streptococcus? A 7.5 × 101 nm B 7.5 × 102 nm C 7.5 × 100 µm D 7.5 × 101 µmQuestion 124: Which size of ribosome is found in chloroplasts and typical prokaryotic cells? A 60S B 70S C 80S D 90SQuestion 125: Pancreatic cells have a diameter of 35 µm. Red blood cells have a diameter of 7000 nm. Which statement is correct? A Pancreatic cells are 5…Question 126: Which process occurs in a mature red blood cell? A active transport B cell division C transcription D translationQuestion 127: Which structures are present in a Vibrio cholerae cell? circular DNA 80S A ribosomes D C B mitochondria37 / 118
Question 128: Which features of microvilli and root hairs are correct? cannot be more than one increase cell resolved with contain present on a surface a…Question 129: Which order of organelles is correct when a protein is synthesised and secreted? A Golgi body → lysosome → ribosome → nucleus B nucleus → r…Question 130: Which size of ribosome is found in mitochondria? A 60S B 70S C 80S D 90SQuestion 131: Which features of microvilli and root hairs are correct? cannot be more than one increase cell resolved with contain present on a surface a…Question 132: Lysosomes have a variety of different shapes and sizes, making them difficult to identify. What describes a lysosome? A a vesicle containin…38 / 118
Question 133: Radioactively-labelled amino acids were introduced into a tracheal cell that uses them to make mucus (a glycoprotein). 1 2 3 4 What route w…Question 134: Which structures are present in a Vibrio cholerae cell? circular 80S DNA ribosomes B A D C cell wallQuestion 135: Which size of ribosome is found in chloroplasts? A 60S B 70S C 80S D 90S39 / 118
Question 136: Which features of cilia and root hairs are correct? cannot be more than one increase cell resolved with contain present on a surface area t…Question 137: The diagram shows a typical animal cell. Each labelled structure is involved with the synthesis of biological molecules. 1 2 3 4 Within whi…Question 138: What is present in a Vibrio cholerae cell? cell Golgi wall body A B C D rough endoplasmic reticulum40 / 118
Question 139: What is correct for a typical prokaryotic cell? cell wall cell diameter ribosomes A cellulose 1-5 µm 70S B cellulose 5-40 µm 70S and 80S C …Question 140: The electron micrograph shows part of a eukaryotic cell. Which of the labelled organelles is a site of protein synthesis? A B C DQuestion 141: Inside a cell, a damaged mitochondrion can be surrounded and enclosed by a membrane to form a vesicle. What happens after the fusion of a l…Question 142: Which structures will be present in a cell that causes cholera? 1 circular DNA 2 naked DNA 3 70S ribosomes A 1, 2 and 3 B 1 and 2 only C 1 …41 / 118
Question 143: The drawing from an electron micrograph shows a ciliated epithelial cell, magnified ×1500, which is found in the trachea. Line X-Y shows th…Question 144: What are correct locations of ribosomes in the typical eukaryotic cell? 1 free in the cytoplasm 2 attached to the outside of the endoplasmi…Question 145: What are found in both chloroplasts and typical prokaryotic cells? A 70S ribosomes and circular DNA B 70S ribosomes only C 80S ribosomes an…Question 146: Which statements about both mitochondria and chloroplasts are correct? 1 They contain 80S ribosomes. 2 They contain circular DNA molecules.…42 / 118
Question 147: Which range of sizes would include most eukaryotic cells? A 1 × 102 nm to 1 µm B 1 µm to 1 × 101 µm C 1 × 101 µm to 1 × 102 µm D 1 × 102 µ…Question 148: A scientist carried out an experiment to separate the organelles in an animal cell by mass. The scientist mixed the cells with a buffer sol…Question 149: For which cell component would nanometres be the most appropriate unit of measurement? A a cell surface membrane B a chloroplast C a mitoch…43 / 118
Question 150: Which organelles are required for the formation of lysosomes containing hydrolytic enzymes? mitochondria B A D C rough Golgi endoplasmic ap…Question 151: What are found in both chloroplasts and mitochondria? A 70S ribosomes only B 70S ribosomes and circular DNA C 80S ribosomes and circular DN…Question 152: Goblet cells are found in the trachea. Which organelles would be found in large numbers in a goblet cell? Golgi mitochondria ribosomes b…Question 153: Which parts of a cell contain ribosomes? 1 chloroplast 2 mitochondrion 3 nucleus 4 cytoplasm A 1, 2, 3 and 4 B 1, 2 and 3 only C 1, 2 and 4…44 / 118
Question 154: The electron micrograph shows part of two eukaryotic cells. W X Y Which features are also found in prokaryotes? A W only B X only C X and Y…Question 155: Which of the structures are found in photosynthetic prokaryotes? 1 cell surface membrane 2 cellulose wall 3 ribosomes 4 chloroplasts A 1, 2…Question 156: Which structure is only found in typical eukaryotic animal cells? A cell surface membrane B centriole C Golgi body D ribosomeQuestion 157: Which letter on the logarithmic scale corresponds to the size of a typical prokaryote? 1 mm 100 µm 10 µm A 1 µm B 100 nm C 10 nm D 1 nm45 / 118
Question 158: Which statement is correct? A Prokaryotes and chloroplasts have circular DNA where genes carrying the code for cell walls are located. B Pr…Question 159: The diagram shows a typical animal cell. Which features are also found in both plant cells and prokaryotic cells? 1 2 3 4 5 6 A v v v v v…Question 160: What do pathogens of HIV/AIDS, malaria and TB have in common? they have a cell they have they have surface membrane genes ribosomes A v v …46 / 118
Question 161: The diagram shows the ultrastructure of a typical animal cell. Which structure synthesises and transports lipids? D A B CQuestion 162: Some features of cells are listed. 1 cytoplasm 2 cell surface membrane 3 ribosomes Which features are found in both animal and prokaryotic …Question 163: Which size of ribosomes is found in chloroplasts? A 60S B 70S C 80S D 90SQuestion 164: In which of these organelles is ATP synthesised? Golgi body B A C mitochondrion D chloroplast47 / 118
Question 165: The electron micrograph shows part of two cells. W X Y Which labelled features identify these cells as eukaryotic? A W, X and Y B W and X o…Question 166: Plant cells are fixed, stained and viewed using a student microscope. The light source was natural light. What would be clearly visible at …Question 167: Some secretory cells synthesise and release glycoproteins. What is the correct order of the sequence of events as they occur in the secreto…48 / 118
Question 168: A scientist carried out an experiment to separate the organelles in an animal cell by mass. The scientist mixed the cells with a buffer sol…Question 169: Which organelles are enclosed in a single phospholipid bilayer and contain hydrolytic enzymes? A endocytotic vesicles B Golgi body C lysoso…Question 170: The DNA of prokaryotes is naked and circular. Which statement describes how the DNA of eukaryotes differs from that of prokaryotes? A It ha…Question 171: What are found in chloroplasts and mitochondria? 1 DNA 2 70S ribosomes 3 mRNA A 1, 2 and 3 B 1 and 2 only C 1 only D 2 and 3 only49 / 118
Question 172: Where are cisternae found in a cell? 1 endoplasmic reticulum 2 Golgi body 3 mitochondrion A 1 and 2 B 1 and 3 C 1 only D 2 and 3Question 173: It is possible for a bacterium to synthesise a eukaryotic protein. This involves introducing a eukaryotic gene into the bacterial DNA, whic…Question 174: Which structures are found in both typical eukaryotic cells and typical prokaryotic cells? 1 70S ribosomes 2 80S ribosomes 3 circular DNA A…Question 175: One of the smallest viruses is the polio virus, which has a diameter of approximately 30 nm. In 2003, the Mimivirus was discovered which ha…Question 176: Which cell components are present in all prokaryotic cells? cell surface endoplasmic membrane cell wall reticulum flagellum A JV V x y B…50 / 118
Question 177: The electron micrograph shows part of an animal cell. What will be synthesised in large quantities in this cell? 1 ATP 2 glucose 3 RNA A 1,…Question 178: Mitochondria are thought to have evolved from prokaryotic cells that were ingested by an ancestral cell. Which feature have the prokaryotes…Question 179: Which statement is correct? A A virus is composed of a protein coat which may surround RNA or DNA. B Eukaryotic plant cell walls contain pe…Question 180: A cell was supplied with cytosine labelled with radioactive carbon. In which cell structure would radioactivity be detected first? A endopl…51 / 118
Question 181: The diagram shows some similarities between chloroplasts, mitochondria and typical prokaryotes. 1 2 3 4 5 Which row is correct? 1 2 3 4 5 A…Question 182: Which statement supports the fact that mature plant cells can carry out the same role as lysosomes? A A range of hydrolytic enzymes can be …Question 183: Which row correctly matches each cell structure with its function? microtubules rough endoplasmic reticulum A allow vesicles to move within…Question 184: Which animal cells would have the most extensive Golgi bodies? A ciliated epithelial cells B goblet cells C red blood cells D smooth muscle…Question 185: Lysosomes contain many different hydrolytic enzymes that may act within cells (intracellular enzymes) or outside cells (extracellular enzym…52 / 118
Question 186: A scientist carried out an experiment to separate cell structures in animal cells. The cells were broken open to release the cell structure…Question 187: Radioactively-labelled nucleotides are introduced into a cell. 1 2 3 4 In which cell structures will the radioactivity first become concent…53 / 118
Question 188: Some features of cells are listed. 1 cell wall 2 cell surface membrane 3 ribosomes Which features can be found in plant cells and in prokar…Question 189: Which type of cell contains the highest proportion of cell structures bound by a single membrane? A ciliated epithelial cell B goblet cell …Question 190: The table shows a variety of structures which may be found in cells. Which row shows structures that could be found in the root cells of a…Question 191: Which of these cell structures are present in Plasmodium? Golgi ribosomes body B A C D mitochondria54 / 118
Question 192: The diagram shows functions of four cell structures, W, X, Y and Z. W makes glycolipid Z transports X makes function protein protein Y make…Question 193: Which cell structures produce ATP? 1 chloroplasts 2 mitochondria 3 nucleus A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 onlyQuestion 194: When mucus is secreted from a goblet cell these events take place. 1 addition of carbohydrate to protein 2 fusion of the vesicle with the c…55 / 118
Question 195: Which row could be correct for a virus? carbohydrate DNA phospholipid lipid protein RNA A J J Jv J Jv J B v x Jv x x v Cc x J x x x J D x …Question 196: Which size range would include most prokaryotic cells? A B C D 1 nm 100 nm 1 µm 100 µm 1 mmQuestion 197: A student made notes describing photomicrographs of four cells. cell 1 Grey cytoplasm at edge of cell contains many black lines and spots. …56 / 118
Question 198: Which cell structures may contain cisternae? endoplasmic chloroplast reticulum Golgi body mitochondrion A Jv Jv Jv x B J x x J Cc x J Jv …Question 199: Which row correctly describes the function of the cell structures? smooth lysosomes mitochondria endoplasmic Golgi body reticulum A digesti…Question 200: The diagram shows the relationship between various cells and their components. 1 2 3 4 5 Which row is correct? 1 2 3 4 5 A 80S ribosome euk…57 / 118
Question 201: Which comparison of bacteria cell walls and plant cell walls is correct? bacteria cell wall plant cell wall A made of a polymer of α-glucos…Question 202: What is the diameter of a typical prokaryote, such as Streptococcus? A 7.5 × 101 nm B 7.5 × 102 nm C 7.5 × 100 µm D 7.5 × 101 µmQuestion 203: Which structures are present in a Vibrio cholerae cell? circular DNA A D B 80S mitochondria C ribosomesQuestion 204: Which processes occur in eukaryotes and prokaryotes? 1 hydrolysis 2 mitosis 3 transcription 4 translation A 1, 2 and 3 B 1, 2 and 4 C 1, 3 …58 / 118
Question 205: The diagram is a drawing from an electron micrograph of a typical animal cell. X What is the function of the membrane system labelled X? A …Question 206: The diagram is a drawing from an electron micrograph of a typical animal cell. 1 2 3 Where would nucleic acid be found? A 1, 2 and 3 B 1 an…59 / 118
Question 207: The diagram shows some similarities between chloroplasts, mitochondria and typical prokaryotes. 1 2 3 4 5 Which row is correct? 1 2 3 4 5 A…Question 208: Which structures are found in both chloroplasts and mitochondria? 1 70S ribosomes 2 80S ribosomes 3 circular DNA A 1 and 3 B 2 and 3 C 1 on…Question 209: Radioactively labelled amino acids are introduced into a cell that is actively secreting an enzyme. In which cell structure will the radioa…60 / 118
Question 210: Which features of cilia and root hairs are correct? cannot be more than one increase cell resolved with contain present on a surface area t…Question 211: Which are functions of microtubules? 1 allowing movement of cilia in a bronchus 2 attachment of centromeres during metaphase 3 moving secre…Question 212: Some cell structures are listed. 1 mitochondria 2 nucleus 3 chloroplasts 4 ribosomes What is the correct order of these cell structures whe…Question 213: Which cell structures have ribosomal RNA (rRNA)? 1 chloroplast 2 mitochondrion 3 nucleus 4 rough endoplasmic reticulum A 1, 2, 3 and 4 B 1,…61 / 118
Question 214: A cell structure in the macrophage destroys bacteria. Some bacteria stop this cell structure from functioning. Which cell structure in the …Question 215: Two different types of cell, P and Q, were broken up using ultrasound and their contents analysed. Both types of cell contained small circu…Question 216: Which features shown in the diagram can be present in viruses? 4 1 RNA DNA feature 3 2 70S protein coat ribosomes A 1, 2 and 3 B 1, 2 and 4…62 / 118
Question 217: The diagram shows a typical animal cell as seen using an electron microscope. 1 5 2 4 3 Which of the numbered structures are needed for pro…Question 218: Lysosomes vary in shape and size, making them difficult to identify. What describes a lysosome? A a vesicle containing enzymes, enclosed by…Question 219: A single-celled organism lives inside the body of a fish. This single-celled organism is rod-shaped, 700 µm long, enclosed in a cell wall a…63 / 118
Question 220: A group of students were asked to look at the photomicrograph of a cross-section of unfamiliar material and make observations. X The studen…Question 221: Which cell structure contains cytoplasm? A chloroplasts B mitochondria C plasmodesmata D smooth endoplasmic reticulumQuestion 222: Some cell structures are listed in a particular order. 1 nucleus 2 ribosome 3 Golgi body 4 vesicle What determines the order in which these…64 / 118
Question 223: Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by …Question 224: The antibiotic chloramphenicol inhibits protein synthesis in mitochondria and in some prokaryotes. Chloramphenicol does not inhibit protein…65 / 118
Question 225: The diameter of living cells varies considerably. The diameter of a typical eukaryotic cell is 1.5 × 101 µm. The diameter of a typical prok…Question 226: Which structures are found in animal cells and in plant cells? 1 centriole 2 lysosome 3 nucleolus 4 vacuole A 1 and 3 only B 2 and 4 only C…Question 227: Which features shown in the diagram can be present in eukaryotes? 4 peptidoglycan 1 cell wall DNA feature 3 2 70S RNA ribosomes A 1, 2 and …66 / 118
Question 228: Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by …Question 229: Different antibiotics function in different ways. It is important that the antibiotic kills the bacteria, but does not harm the infected hu…Question 230: Which cell structures contain 70S ribosomes? 1 chloroplasts 2 mitochondria 3 nucleus 4 cytoplasm A 1 and 2 only B 1 only C 2, 3 and 4 D 2 a…67 / 118
Question 231: The electron micrograph shows part of a plant cell. P Q R S 5 μm Which combination correctly identifies the labelled cell structures? P Q R…68 / 118
Question 232: Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by …Question 233: Which cell structures can form vesicles? cell structure cell surface membrane endoplasmic reticulum Golgi body key / = can form vesicl…69 / 118
Question 234: The diagram shows three circles, 1, 3 and 5, representing chloroplasts, mitochondria and typical prokaryotes. circle 3 circle 1 circle 5 2 …Question 235: Which cell structures contain RNA? 1 centrioles 2 mitochondria 3 nucleus 4 ribosomes A 1, 2, 3 and 4 B 1 and 2 only C 2, 3 and 4 only D 3 a…Question 236: It is possible for a bacterium to synthesise a eukaryotic protein. This involves introducing a eukaryotic gene into the bacterial DNA. The …Question 237: Which structures are found in typical prokaryotic cells and also in typical plant cells? A cell walls B histones C telomeres D tonoplasts70 / 118
Question 238: The photomicrograph shows the ultrastructure of part of a cell. Which statement about the type of cell shown in the photomicrograph is corr…Question 239: Which structures are found in typical eukaryotic cells? 1 70S ribosomes 2 80S ribosomes 3 linear DNA (chromosomes) 4 circular DNA A 1, 2, 3…Question 240: The table shows a comparison between two features of a typical eukaryotic cell and a typical prokaryotic cell. Which row shows the correc…71 / 118
Question 241: Which row correctly shows a feature of a cell structure? site of protein makes lysosomes synthesis A smooth endoplasmic rough endoplasmic r…Question 242: Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by …72 / 118
Question 243: The features of some cells and cell structures that make ATP are listed. 1 has outer boundary membrane and folded inner membrane 2 has pept…Question 244: Mitochondria are thought to have evolved from prokaryotic cells that were ingested by an ancestral cell. Which feature have these prokaryot…Question 245: The electron micrograph shows part of a eukaryotic cell. Which cell structure is a site of protein synthesis? A B C D73 / 118
Question 246: Some stains can be used to identify cell structures in living cells. A dilute solution of one stain causes the whole cell to appear blue. T…Question 247: A molecule of carbon dioxide is in the centre of a mitochondrion. Assuming there are no other cell structures in its path, how many phospho…Question 248: Which row identifies the type of ribosome found in each of the different structures? cytoplasm of chloroplast prokaryotic cell mitochondrio…Question 249: Which row shows the correct order of size of these cell structures? 1 width of a mitochondrion 2 width of a ribosome 3 width of a cell surf…74 / 118
Question 250: Insulin is a hormone synthesised from two polypeptide chains inside cells of the pancreas. Which row shows the cell structures that are us…Question 251: The electron micrograph shows a cell structure in a eukaryotic cell. Which statements about this cell structure are correct? 1 ATP is synth…75 / 118
Question 252: Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by …Question 253: The DNA of typical prokaryotes is naked and circular. Which statement describes how the DNA of eukaryotes differs from the DNA of typical p…Question 254: Which part of the cell is often continuous with the rough endoplasmic reticulum? A cell surface membrane B Golgi body C mitochondrion D nuc…76 / 118
Question 255: Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by …Question 256: Three molecules found in prokaryotes are listed. 1 phospholipid 2 protein 3 peptidoglycan Which molecules are found in prokaryotic cell sur…Question 257: What happens to the surface area to volume ratio of a cube when the length of each side is doubled? A The ratio decreases by a quarter. B T…77 / 118
Question 258: Which row correctly shows the presence of a cell structure in typical plant cells and in typical prokaryotic cells? ole calls prokaryotic …Question 259: Which parts of a cell contain ribosomes? 1 chloroplast 2 mitochondrion 3 Golgi body 4 cytoplasm A 1, 2, 3 and 4 B 1, 2 and 3 only C 1, 2 an…Question 260: Which range of cell diameters is typical for prokaryotic cells? A 1 nm to 5  102 nm B 1  103 nm to 5 m C 1  101 m to 5  102 m D 1  …Question 261: Which row shows a combination of molecules that could be found together in a single isolated virus? carbohydrate DNA phospholipid lipid pr…78 / 118
Question 262: The electron micrograph shows a structure found in the cytoplasm of an animal cell. What is this cell structure? A centriole B lysosome C r…Question 263: Which cell structures contain nucleic acid? 1 Golgi body 2 lysosome 3 mitochondria 4 ribosomes A 1, 2 and 3 B 1, 2 and 4 C 1 and 4 only D 3…Question 264: Which statements about mitochondria, chloroplasts or prokaryotes are correct? 1 Mitochondria and chloroplasts have a fully permeable inner …Question 265: The very large (1000 nm) Pandora viruses found in Chile and Australia are considered to be viruses because they cannot replicate their own …79 / 118
Question 266: Which row describes the membranes surrounding each cell structure? chloroplast mitochondrion nucleus A single single double B double single…Question 267: Which sequence shows the correct order of some of the stages in the production and secretion of an enzyme? A Golgi body  ribosome  ro…Question 268: Different antibiotics function in different ways. Ideally, the antibiotic kills the bacteria, but does not harm the infected human. One typ…Question 269: Which set of measurements is correct? thickness of cell diameter of diameter of red surface membrane capillary blood cell of red blood cell…Question 270: Which cell structures contain DNA? 1 mitochondria 2 chloroplasts 3 centrioles 4 nucleolus A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and…80 / 118
Question 271: Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by …Question 272: Which row is correct for structures found in eukaryotic cells? circular DNA 70S ribosomes 80S ribosomes A present present present B present…Question 273: In which cell structures does DNA transcription occur? chloroplast A D mitochondrion nucleus C B81 / 118
Question 274: Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by …Question 275: Which cell structures are required for the formation of lysosomes and the hydrolytic enzymes that they contain? mitochondria B rough endopl…82 / 118
Question 276: Which cell structures contain rRNA? 1 chloroplast 2 mitochondrion 3 nucleus 4 smooth endoplasmic reticulum A 1, 2, 3 and 4 B 1, 2 and 3 onl…Question 277: The single-celled organism Thiomargarita namibiensis measures 700 m in diameter and is enclosed in a cell wall. The genetic material of T.…Question 278: What is the length of a typical prokaryote, such as the bacterium Escherichia coli ? A 1.5  101 nm B 1.5  102 nm C 1.5  100 m D 1.5  1…Question 279: Which cell structures are present in Plasmodium? B Golgi ribosomes body A C D mitochondria83 / 118
Question 280: Which cell structures may contain nucleic acid? 1 cytoplasm 2 chloroplast 3 ribosome 4 Golgi body A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D …Question 281: Goblet cells are found in the trachea. Which cell structures would be found extensively in a goblet cell? Golgi body | mitochondria | rib…Question 282: Microvilli and root hairs are characteristic structures of some cell types. Which row identifies some features of a microvillus and a root …Question 283: Which eukaryotic cell structures all contain nucleic acids? A cytoplasm, Golgi bodies, mitochondria, nuclei B centrioles, chloroplasts, mit…Question 284: Which statements about viruses are correct? 1 They contain DNA or RNA. 2 They use host cells to synthesise virus proteins. 3 They can have …84 / 118
Question 285: What are features of prokaryote cells, chloroplasts and mitochondria? ribosomes smaller circular than 80S A B C DNA D surrounded by a doubl…Question 286: Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by …Question 287: Which size range would include most prokaryotic cells? A B C D 1 nm 100 nm 1 µm 100 µm 1 mm85 / 118
Question 288: What is present in a typical prokaryotic cell and a typical eukaryotic cell? A 70S ribosomes B centrioles C circular DNA in the cytoplasm D…Question 289: Which statement about viruses is correct? A They all have a capsid made of protein. B They all contain RNA. C They all have an outer envelo…Question 290: Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by …Question 291: What is found in chloroplasts and mitochondria? A 70S ribosomes only B 70S ribosomes and circular DNA C 80S ribosomes and circular DNA D ci…86 / 118
Question 292: Which feature is correct for all known viruses? A capsid made of lipid and protein B DNA core C outer envelope of phospholipid D non-cellul…Question 293: Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by …87 / 118
Question 294: An experiment was carried out to separate the cell structures in an animal cell. The cells were broken open. The extract was filtered and p…Question 295: Which row shows a comparison that is not correct between a typical prokaryotic cell and a typical eukaryotic plant cell? prokaryotic cell e…Question 296: It is suggested that primitive prokaryotic cells may be ancestors of certain organelles in eukaryotic cells. Which organelle is most simila…88 / 118
Question 297: Which row matches each organelle with its function? rough endoplasmic microtubules Golgi body centrioles reticulum A make cilia and separat…Question 298: Where are 80S ribosomes found? 1 chloroplasts 2 cytoplasm of eukaryotes 3 mitochondria 4 cytoplasm of prokaryotes A 1, 2 and 3 B 1 and 3 on…Question 299: Which feature, when present in an organism, enables it to be identified as a prokaryote? A cytoplasmic DNA B cell wall C nucleus D ribosomesQuestion 300: What is the function of the nucleolus? A the formation and breakdown of the nuclear envelope B the formation of rough endoplasmic reticulum…Question 301: A cuboidal epithelium cell has a length of 2 µm. The cell is an approximate cube shape. What is the most accurate estimate of the surface a…89 / 118
Question 302: Where are cisternae found in a cell? 1 endoplasmic reticulum 2 Golgi body 3 mitochondria A 1 and 2 B 1 and 3 C 1 only D 2 and 3Question 303: Which row matches the functions to the cell structures? vacuole nucleolus ribosomes lysosomes A stores water, manufactures protein involved…Question 304: Which structures are found in prokaryotes and eukaryotes? A cell membrane and nucleus B cell membrane and ribosomes C nucleus and mitochond…Question 305: Some cell structures are listed. 1 endoplasmic reticulum 2 Golgi body 3 mitochondrion 4 chloroplast Which cell structures do not contain cr…90 / 118
Question 306: Which letter represents cell structures where mRNA may be found? cytoplasm A C B mitochondrion nucleus DQuestion 307: Which row is correct for typical prokaryotic cells and mitochondria? prokaryotic feature mitochondria cells A 70S ribosomes no yes B circul…Question 308: Which statement is correct? A A virus is composed of a protein coat which surrounds RNA or DNA. B Suberin and cellulose are found in all pl…91 / 118
Question 309: The diagram shows the epidermis of human skin. This is formed of four layers of cells. Cells in each layer have specific functions which ar…Question 310: Which statements are correct for chloroplasts and also for mitochondria? 1 They contain 80S ribosomes. 2 They can transcribe their circular…92 / 118
Question 311: The electron micrograph shows some cells from a root. Which cell structure is not usually found in cells from a root? A D B CQuestion 312: What is present in all viruses? A ribose B deoxyribose C adenine D thymineQuestion 313: What happens to the surface area to volume ratio of a cube when the length of each side is doubled? A The ratio decreases by four times. B …Question 314: Which cell structures can form vesicles? cell surface endoplasmic membrane reticulum Golgi body A Jv v v key B v v x / = can form vesicl…93 / 118
Question 315: Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by …Question 316: Which cells contain a tonoplast? root hair companion sieve tube element ~~ KOK endodermis Kk SK key / = contain tonoplast X = do no…Question 317: Which organelles found in animal or plant cells are surrounded by double membranes? A chloroplasts, mitochondria, vacuoles B chloroplasts, …94 / 118
Question 318: Some scientists think that mitochondria evolved from bacteria that entered the cytoplasm of a different cell and were able to survive there…Question 319: Six organelles found in eukaryotic cells are shown. 1 2 3 NOT TO SCALE 4 5 6 Which organelles are involved in the synthesis and secretion o…Question 320: Which cell structures can have mRNA inside them? 1 chloroplast 2 mitochondrion 3 nucleus 4 rough endoplasmic reticulum A 1, 2, 3 and 4 B 1,…95 / 118
Question 321: A scientist carried out an experiment to separate the organelles in an animal cell by mass. The scientist mixed the cells with a buffer sol…Question 322: Which structures are found in palisade mesophyll cells and photosynthetic prokaryotes? 1 cell surface membrane 2 cellulose wall 3 ribosomes…96 / 118
Question 323: The electron micrograph shows a structure found in the cytoplasm of an animal cell. Which biological molecules are found in this structure?…Question 324: Which cell structures contain nucleic acid? 1 cytoplasm 2 lysosomes 3 mitochondria A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 3 onlyQuestion 325: Mitochondria are thought to have evolved from prokaryotic cells that were ingested by an ancestral cell. Which feature have prokaryotes los…Question 326: What is correct about the synthesis and release of the glycoprotein mucin in goblet cells? 1 The protein is produced on ribosomes and a car…97 / 118
Question 327: What are functions of microtubules? 1 allowing movement of cilia in a bronchus 2 attachment to centromeres during metaphase 3 moving secret…Question 328: Which organelles contain nucleic acids? Golgi body B A C mitochondrion D chloroplastQuestion 329: Some features of cells are listed. 1 cell wall 2 cell surface membrane 3 ribosomes Which features can be found in plant cells and in prokar…Question 330: What is the correct order for the involvement of the cell structures in the synthesis and secretion of an enzyme? 1 cell surface membrane 2…98 / 118
Question 331: Centrioles, cilia, microtubules and microvilli are structures found in eukaryotic cells. Which statement about these cellular structures is…Question 332: Which description of plasmodesmata is correct? A They are channels through plant cell walls, lined by the cell surface membrane. B They are…Question 333: Which cell organelle does not have nucleic acids? A chloroplast B Golgi body C mitochondrion D ribosomeQuestion 334: Which processes occur in eukaryotes and prokaryotes? 1 hydrolysis 2 mitosis 3 transcription 4 translation A 1, 2 and 3 B 1, 2 and 4 C 1, 3 …Question 335: Some stains can be used to identify cell structures in living cells. A dilute solution of one stain causes the whole cell to appear blue. T…99 / 118
Question 336: When mucus is secreted from a goblet cell, these events take place. 1 addition of carbohydrate to protein 2 fusion of a vesicle with the ce…Question 337: The diagram shows four biological features. 4 1 RNA DNA feature 3 2 70S capsid ribosomes Which biological features are present in typical p…Question 338: Which row shows features that occur in dicotyledonous plant cells and also in typical bacterial cells? key ✓= found in dicotyledonous plant…100 / 118
Question 339: Which range of cell diameters is typical for prokaryotic cells? A 1 nm to 5  102 nm B 1  103 nm to 5 m C 1  101 m to 5  102 m D 1  …Question 340: The diagram shows a typical animal cell. 1 2 3 Where would nucleic acids be found? A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 onlyQuestion 341: Which structure is found in a typical bacterial cell? A intron B telomere C template strand D capsidQuestion 342: Which row is correct for stem cells? can be involved in the can repair cells formation of phagocytes A yes no B yes yes C no no D no yes101 / 118
Question 343: The diagram shows a plant cell with some labelled structures. Q P R S Which labelled structures are bound by a double membrane? A P and Q B…Question 344: Which size of ribosome is found in mitochondria and typical prokaryotic cells? A 50S B 60S C 70S D 80SQuestion 345: Which row about typical prokaryotic cells and typical animal cells is correct? lysosomes present for the break down | /'P Is produced by t…Question 346: Which row is correct for the structures present in typical plant cells and typical animal cells? cell structure plant cell animal cell A pl…102 / 118
Question 347: The image is an electron micrograph of a typical eukaryotic cell. What can be concluded about the eukaryotic cell from the electron microgr…Question 348: Which features are found in typical eukaryotes and also in typical bacteria? can respire A C B messenger RNA binds to 80S contain D ribosom…Question 349: Which type of cell will have the highest proportion of its volume taken up with cell structures bound by a single membrane? A ciliated epit…103 / 118
Question 350: Bacteria may be classified according to differences in cell wall structure. The differences are shown by using the Gram stain. The diagram …Question 351: Which statement explains why lymphocytes with no nucleoli die? A The cells do not have centrioles and cannot divide. B The cells do not hav…104 / 118
Question 352: Which cell structures contain nucleic acids? 1 chloroplasts 2 Golgi bodies 3 lysosomes 4 ribosomes A 1, 2 and 3 B 1, 2 and 4 C 1 and 4 only…Question 353: How many types of structures with a double membrane that are found in animal cells are also found in plant cells? A 1 B 2 C 3 D 4Question 354: The diagram shows the mean dimensions of an epithelial cell in micrometres (m). width 2 μm height 3 μm length 8 μm Which row shows the sur…Question 355: Which structures or compounds are present in a typical cell that can be killed by penicillin? 1 circular DNA 2 cytoplasmic DNA 3 70S riboso…105 / 118
Question 356: Which statement supports the fact that mature plant cells contain organelles that carry out the same role as lysosomes? A A range of hydrol…Question 357: Which cell structures may contain cisternae? chloroplast oncoplasmic Golgi body mitochondrion A JV v v x B Jv x x Jv Cc x J Jv x D x Jv x …Question 358: The diagram shows some cell structures of one type of cell. 1 5 2 4 3 Which labelled cell structures are present in typical eukaryotic cell…106 / 118
Question 359: The electron micrograph shows rod-shaped bacteria. length 2.0 μm diameter 0.5 μm The actual length of the bacterium is 2.0 m and the diame…Question 360: Peptidoglycan is stained purple by the chemical crystal violet. Which cells would stain purple in the presence of crystal violet? A palisad…Question 361: Which cell structure is found in human cells and typical plant cells? A 70S ribosomes B cilia C plasmodesmata D tonoplastQuestion 362: Which statements are correct for a typical prokaryotic cell? 1 It contains 70S ribosomes. 2 It contains a cellulose cell wall. 3 It contain…107 / 118
Question 363: The diagram shows a typical animal cell. X What is the function of the membrane system labelled X? A lipid synthesis only B protein synthes…Question 364: What describes a lysosome? A a vesicle containing enzymes, enclosed by a double membrane, that is budded off the endoplasmic reticulum B a …Question 365: There is a theory that mitochondria and chloroplasts were originally free-living prokaryotes. It is thought that millions of years ago thes…108 / 118
Question 366: Which row correctly describes a function of each cell structure? smooth lysosome mitochondrion endoplasmic reticulum A digestion of unwante…Question 367: Which cell components are present in typical prokaryotic cells? cell wall 80S ribosomes v key / = present x x X = not present vQuestion 368: X-ray analysis of fossilised cells found in rocks in central India dating back 1.6 billion years has revealed several features. 1 The cells…109 / 118
Question 369: The electron micrograph shows an organelle found in some cells of many multicellular organisms. Which row shows structures that are expect…Question 370: The table compares some biochemical molecules of P, Q, R and S. chlorophyll oO DO VU Which row correctly identifies P, Q, R and S? Q R…Question 371: Which cell structures contain enzymes and are enclosed by a double membrane? 1 nucleus 2 mitochondrion 3 chloroplast A 1, 2 and 3 B 1 and 2…110 / 118
Question 372: What is the order of size of cell structures? largest smallest A centrioles ribosomes lysosomes nucleoli B centrioles nucleoli lysosomes ri…Question 373: Prokaryotes and eukaryotes use extracellular enzymes. Extracellular digestive enzymes are found in the external environments of some prokar…111 / 118
Question 374: The diagram was drawn from an electron micrograph of an animal cell. Which diagram would represent the same cell viewed with a simple light…Question 375: Which cell structures contain ribosomal RNA? 1 chloroplasts 2 mitochondria 3 nuclei A 1, 2 and 3 B 1 and 2 only C 2 and 3 only D 3 onlyQuestion 376: Immature red blood cells contain all the usual organelles and cell structures associated with animal cells. Mature red blood cells are spec…112 / 118
Question 377: A culture of human cells had its cell surface membranes removed, releasing the cell contents. This material became contaminated by bacteria…Question 378: The diagram shows the structure of a virus. 1 2 Which row identifies the correct description of the structures labelled 1 and 2? 1 2 A prot…Question 379: What are found in chloroplasts and also in mitochondria? 1 DNA 2 70S ribosomes 3 mRNA A 1, 2 and 3 B 1 and 2 only C 1 only D 2 and 3 only113 / 118
Question 380: A long-distance runner has become adapted to run faster for longer after regular training. Which cell structure in a muscle cell has increa…Question 381: Some functions carried out within eukaryotic cells are listed. 1 lysosome production 2 polypeptide modification 3 exocytosis Which function…Question 382: The diagram shows the structure of a unicellular organism. nucleus mitochondria cell membrane vacuole cytoplasm Which statement is correct …Question 383: A cell absorbs amino acids. This cell then synthesises and exports a digestive enzyme. Different cell structures are involved with differen…114 / 118
Question 384: What is a function of Golgi bodies? A formation of vesicles for endocytosis B modification of proteins for secretion C synthesis of ATP D s…Question 385: Acell in the human body is specialised for synthesis and secretion of lipids. Which row shows the organelles required by the cell for synt…Question 386: The photomicrograph shows part of a cell. Which row is correct? the organelles this cell will this could be | shown could be contain 70S…Question 387: Which statement about viruses is correct? A They are cells with a capsid made of phospholipids. B They are cells with a capsid made of prot…115 / 118
Question 388: Cell structures can be isolated by centrifuging the cells in a sucrose density gradient. This breaks up the cells and separates the cell st…Question 389: The diagram shows a plant cell. 4 1 2 3 Which labelled organelles would contain nucleotides? A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 …116 / 118
Question 390: The image shown is produced using a microscope. How many statements about this image are correct? ● It is an electron micrograph. ● It show…Question 391: Bacterial ribosomes consist of two subunits and a total of three rRNA molecules per ribosome. An analysis of all the 70S ribosomes from a s…117 / 118
Question 392: Radioactively labelled amino acids are introduced into a tracheal cell that uses them to make mucus (a glycoprotein). 1 2 3 4 Which route w…Question 393: Which features shown in the diagram can be present in viruses? 4 1 RNA DNA feature 3 2 70S protein coat ribosomes A 1, 2 and 3 B 1, 2 and 4…118 / 118

Mark scheme393 answers

Answers below. Sit the paper first if you are practising.

Pastlit

Biology 9700 · Cells as the basic units of living organisms — Paper 1

A Level · topical answer key — answer key (teacher use)

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Marks

1A1
2D1
3C1
4C1
5B1
6D1
7D1
8D1
9B1
10D1
11C1
12A1
13B1
14A1
15B1
16D1
17B1
18A1
19C1
20D1
21C1
22C1
23C1
24D1
25C1
26C1
27D1
28C1
29D1
30C1
31D1
32C1
33C1
34D1
35B1
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37B1
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44A1
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Pastlit

Biology 9700 · Cells as the basic units of living organisms — Paper 1

A Level · topical answer key — answer key (teacher use)

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Marks

50A1
51D1
52C1
53A1
54A1
55B1
56C1
57D1
58A1
59D1
60C1
61C1
62C1
63D1
64C1
65B1
66D1
67A1
68A1
69B1
70C1
71B1
72A1
73D1
74C1
75A1
76C1
77C1
78A1
79D1
80A1
81C1
82A1
83A1
84D1
85C1
86C1
87B1
88D1
89B1
90C1
91A1
92C1
93C1
94D1
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96C1
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Pastlit

Biology 9700 · Cells as the basic units of living organisms — Paper 1

A Level · topical answer key — answer key (teacher use)

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99B1
100B1
101D1
102D1
103A1
104B1
105A1
106B1
107B1
108C1
109D1
110C1
111D1
112A1
113D1
114A1
115D1
116C1
117B1
118C1
119B1
120A1
121A1
122D1
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124B1
125A1
126A1
127D1
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131C1
132C1
133B1
134D1
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140B1
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143C1
144B1
145A1
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Pastlit

Biology 9700 · Cells as the basic units of living organisms — Paper 1

A Level · topical answer key — answer key (teacher use)

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148D1
149—1
150—1
151—1
152—1
153A1
154C1
155C1
156B1
157B1
158B1
159B1
160D1
161C1
162A1
163B1
164D1
165C1
166C1
167B1
168A1
169C1
170D1
171A1
172A1
173C1
174B1
175D1
176B1
177B1
178A1
179A1
180C1
181C1
182A1
183C1
184B1
185C1
186B1
187C1
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189B1
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Pastlit

Biology 9700 · Cells as the basic units of living organisms — Paper 1

A Level · topical answer key — answer key (teacher use)

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Marks

197C1
198C1
199B1
200A1
201D1
202B1
203A1
204C1
205B1
206A1
207D1
208A1
209A1
210C1
211A1
212B1
213A1
214B1
215D1
216B1
217C1
218C1
219D1
220C1
221C1
222B1
223C1
224A1
225C1
226C1
227A1
228C1
229D1
230A1
231D1
232D1
233A1
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Pastlit

Biology 9700 · Cells as the basic units of living organisms — Paper 1

A Level · topical answer key — answer key (teacher use)

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Marks

246D1
247C1
248B1
249C1
250C1
251C1
252A1
253D1
254D1
255D1
256B1
257B1
258B1
259C1
260B1
261D1
262A1
263D1
264D1
265B1
266D1
267C1
268D1
269A1
270B1
271C1
272A1
273D1
274D1
275B1
276B1
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278C1
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280A1
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Pastlit

Biology 9700 · Cells as the basic units of living organisms — Paper 1

A Level · topical answer key — answer key (teacher use)

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Marks

295D1
296C1
297A1
298C1
299A1
300D1
301D1
302A1
303C1
304B1
305B1
306B1
307C1
308A1
309B1
310C1
311B1
312C1
313B1
314A1
315A1
316D1
317B1
318D1
319B1
320B1
321B1
322C1
323D1
324C1
325A1
326B1
327A1
328D1
329A1
330C1
331D1
332A1
333B1
334C1
335D1
336A1
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338B1
339B1
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341C1
342D1
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Pastlit

Biology 9700 · Cells as the basic units of living organisms — Paper 1

A Level · topical answer key — answer key (teacher use)

Question

Answer

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Pastlit

Biology 9700 · Cells as the basic units of living organisms — Paper 1

A Level · topical answer key — answer key (teacher use)

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Another paper, or another topic

Paper
Paper 1393 questionsPaper 2questions comingPaper 4questions comingPaper 5questions coming

All of Cell structure →

Questions as text

Q1 · The diagram shows the ultrastructure of a eukaryotic cell 9700/11 Oct/Nov 2004

1 The diagram shows the ultrastructure of a eukaryotic cell. Which organelle does not contain nucleic acid? A D C B

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2004

Q2 · Which components are present in prokaryotic cells? 9700/11 Oct/Nov 2004

4 Which components are present in prokaryotic cells? A chloroplasts, DNA, nuclear envelope B chromosomes, mitochondria, nuclear envelope C cytoplasm, DNA, mitochondria D cytoplasm, DNA, ribosomes

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2004

Q3 · Which structures are present in large numbers at sites of active transport? 9700/11 Oct/Nov 2004

18 Which structures are present in large numbers at sites of active transport? A Golgi bodies B lysosomes C mitochondria D rough endoplasmic reticulum

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2004

Q4 · ~The diagram shows a drawing of an electron micrograph of a cell 9700/11 May/June 2006

2 ~The diagram shows a drawing of an electron micrograph of a cell. ; ; nucleus mitochondrion > — ,, SS SS lysosome ——~--(® Swe ' . cytoplasm Golgi apparatus Which structures are surrounded by double membranes? apparatu s lysosome mitochondrion nucleus cytoplasm A WA V V V V B JV x x x x Cc x x V V x D x V x x V

1 marks

Answer: C

This question in 9700/11 May/June 2006

Q5 · In which animal cells would Golgi apparatus be most abundant? 9700/11 May/June 2006

3 In which animal cells would Golgi apparatus be most abundant? A ciliated epithelial cells B goblet cells C red blood cells D smooth muscle cells

1 marks

Answer: B

This question in 9700/11 May/June 2006

Q6 · Which is a feature of all prokaryotic cells? 9700/11 May/June 2006

5 Which is a feature of all prokaryotic cells? A absence of cell surface membrane B division by mitosis C presence of mitochondria D presence of ribosomes

1 marks

Answer: D

This question in 9700/11 May/June 2006

Q7 · What do the causative agents of HIV/AIDS, malaria and TB have in common? 9700/11 May/June 2006

34 What do the causative agents of HIV/AIDS, malaria and TB have in common? they have a cell they have they have th ; ; ey respire surface membrane genes ribosomes A v Jv v v B v x x v Cc x v x v D x v x x

1 marks

Answer: D

This question in 9700/11 May/June 2006

Q8 · The diagram shows an electron micrograph of a typical animal cell 9700/11 Oct/Nov 2006

2 The diagram shows an electron micrograph of a typical animal cell. X What is the function of the membrane system labelled X? A carbohydrate metabolism B lipid synthesis C protein synthesis D protein synthesis and transport

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2006

Q9 · The diagram shows an electron micrograph of a plant cell 9700/11 Oct/Nov 2006

3 The diagram shows an electron micrograph of a plant cell. X Y Z What do structures X, Y and Z contain? X Y Z A air chlorophyll protein B mineral ions starch DNA and RNA C water mineral ions starch D starch DNA and RNA mineral ions

1 marks

Answer: B

This question in 9700/11 Oct/Nov 2006

Q10 · Which organelles are found in the cells of both eukaryotes and prokaryotes? 9700/11 Oct/Nov 2006

4 Which organelles are found in the cells of both eukaryotes and prokaryotes? A chloroplasts B Golgi apparatus C mitochondria D ribosomes

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2006

Q11 · The diagram is taken from an electron micrograph of a cell which secretes digestive… 9700/11 Oct/Nov 2007

2 The diagram is taken from an electron micrograph of a cell which secretes digestive enzymes. Where are these enzymes made? A B C D

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2007

Q12 · A student is asked to study two photographs, taken at the same magnification, of a… 9700/11 Oct/Nov 2007

5 A student is asked to study two photographs, taken at the same magnification, of a palisade mesophyll cell, one using a high quality light microscope and the other using an electron microscope. The student observed 1 the cisternae of the Golgi apparatus 2 the grana in the chloroplasts 3 the two membranes of the nuclear envelope 4 the vacuole enclosed by a tonoplast Which features can be seen because of the higher resolution of the electron microscope? A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2007

Q13 · What is the order of size of cell components? 9700/11 May/June 2008

1 What is the order of size of cell components? largest smallest A centrioles mitochondria lysosomes nucleoli B mitochondria nucleoli lysosomes centrioles C nucleoli mitochondria centrioles lysosomes D nucleoli centrioles mitochondria lysosomes

1 marks

Answer: B

This question in 9700/11 May/June 2008

Q14 · When mucus is secreted from a goblet cell in the trachea, these events take place 9700/11 May/June 2008

2 When mucus is secreted from a goblet cell in the trachea, these events take place. 1 addition of carbohydrate to protein 2 fusion of the vesicle with the plasma membrane 3 secretion of a glycoprotein 4 separation of a vesicle from the Golgi apparatus What is the sequence in which these events take place? A 1 → 4 → 2 → 3 B 1 → 4 → 3 → 2 C 4 → 1 → 2 → 3 D 4 → 1 → 3 → 2

1 marks

Answer: A

This question in 9700/11 May/June 2008

Q15 · Which structure is present in cells of eukaryotes but not present in cells of prokaryotes? 9700/11 May/June 2008

4 Which structure is present in cells of eukaryotes but not present in cells of prokaryotes? A 70s ribosome B chromatin C mesosome D plasmid

1 marks

Answer: B

This question in 9700/11 May/June 2008

Q16 · A piece of mammalian tissue was homogenised and subjected to differential centrifugation… 9700/11 May/June 2008

5 A piece of mammalian tissue was homogenised and subjected to differential centrifugation to yield four subcellular fractions. The activity of four different types of enzyme, A, B, C and D, was investigated within each fraction. Which bar chart shows the results of investigating hydrolytic enzyme activity? A B C D key fraction containing L - lysosomes activity activity activity activity M - mitochondria N - nuclei R - ribosomes L M N R L M N R L M N R L M N R

1 marks

Answer: D

This question in 9700/11 May/June 2008

Q17 · From which cell organelle are nucleic acids absent? 9700/11 Oct/Nov 2008

2 From which cell organelle are nucleic acids absent? A chloroplast B Golgi apparatus C mitochondrion D ribosome

1 marks

Answer: B

This question in 9700/11 Oct/Nov 2008

Q18 · Mitochondria are thought to have evolved from prokaryotic cells that were ingested by an… 9700/11 Oct/Nov 2008

3 Mitochondria are thought to have evolved from prokaryotic cells that were ingested by an ancestral cell. Which feature have the prokaryotes lost during their evolution into mitochondria? A cell wall B circular chromosome C endoplasmic reticulum D ribosomes

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2008

Q19 · = Which combination is found in a prokaryotic cell? 9700/11 Oct/Nov 2008

5 = Which combination is found in a prokaryotic cell? endoplasmic reticulum DNA RNA nucleus A JV JV x x B J x x y Cc x V4 J x D x x J V key Jv = present X = absent

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2008

Q20 · Which is a feature of all prokaryotic cells? 9700/12 Oct/Nov 2009

2 Which is a feature of all prokaryotic cells? A absence of cell surface membrane B division by mitosis C presence of cellulose cell wall D presence of ribosomes

1 marks

Answer: D

This question in 9700/12 Oct/Nov 2009

Q21 · What is a function of the smooth endoplasmic reticulum? 9700/12 Oct/Nov 2009

6 What is a function of the smooth endoplasmic reticulum? A protein synthesis B protein transport C steroid synthesis D steroid transport

1 marks

Answer: C

This question in 9700/12 Oct/Nov 2009

Q22 · The diagram below is drawn from an electron micrograph of an animal cell 9700/11 May/June 2010

2 The diagram below is drawn from an electron micrograph of an animal cell. Which represents the same cell, seen under a light (optical) microscope at ×400 magnification?

1 marks

Answer: C

This question in 9700/11 May/June 2010

Q23 · Which structures are found in both animal and plant cells? 9700/11 May/June 2010

4 Which structures are found in both animal and plant cells? 1 centriole 2 lysosome 3 nucleolus 4 vacuole A 1 and 3 only B 2 and 4 only C 2, 3 and 4 only D 1, 2, 3 and 4

1 marks

Answer: C

This question in 9700/11 May/June 2010

Q24 · Which observations suggest that a cell is eukaryotic? 9700/11 May/June 2010

5 Which observations suggest that a cell is eukaryotic? 0 Oo WwW > cytoplasm includes endoplasmic reticulum v x x v protein molecules are associated with the DNA K & & x ribosomes distributed through the cytoplasm v x x v key ¥ = found in eukaryotes X = not found in eukaryotes

1 marks

Answer: D

This question in 9700/11 May/June 2010

Q25 · Membranes within and at the surface of cells have different roles 9700/11 May/June 2010

16 Membranes within and at the surface of cells have different roles. The diagram allows the identification of the various organelles within the cell, by describing the membrane structure and function. membrane encloses cell contents encloses a structure cell surface membrane within the cell possesses pores no pores present allows exit of mRNA protein synthesis 1 2 single membrane double membrane transports lipid allows oxygen allows carbon dioxide enzymes synthesis to enter to enter 3 4 5 6 Which of the outcomes shown below correctly identifies the organelles that possess the membrane and function concerned? 1 2 3 4 5 6 A chloroplast vesicle smooth ER rough ER nucleolus mitochondrion B nucleolus rough ER vesicle smooth ER nucleus mitochondrion C nucleus rough ER vesicle smooth ER mitochondrion chloroplast D nucleus smooth ER mitochondrion rough ER vesicle chloroplast

1 marks

Answer: C

This question in 9700/11 May/June 2010

Q26 · The diagram below is drawn from an electron micrograph of an animal cell 9700/12 May/June 2010

12 The diagram below is drawn from an electron micrograph of an animal cell. Which represents the same cell, seen under a light (optical) microscope at ×400 magnification?

1 marks

Answer: C

This question in 9700/12 May/June 2010

Q27 · Which observations suggest that a cell is eukaryotic? 9700/12 May/June 2010

14 Which observations suggest that a cell is eukaryotic? cytoplasm protein ribosomes includes molecules are distributed endoplasmic associated through the reticulum with the DNA cytoplasm A Jv x v B x v x Cc x x x D Jv v v key ¥ = found in eukaryotes X = not found in eukaryotes

1 marks

Answer: D

This question in 9700/12 May/June 2010

Q28 · Which structures are found in both animal and plant cells? 9700/12 May/June 2010

15 Which structures are found in both animal and plant cells? 1 centriole 2 lysosome 3 nucleolus 4 vacuole A 1 and 3 only B 2 and 4 only C 2, 3 and 4 only D 1, 2, 3 and 4

1 marks

Answer: C

This question in 9700/12 May/June 2010

Q29 · Which structures are measured using these units? 9700/12 May/June 2010

16 Which structures are measured using these units? 10–3 m 10–6 m 10–9 m A chloroplast ribosome nucleus B nucleus chloroplast xylem vessel C ribosome xylem vessel chloroplast D xylem vessel nucleus ribosome

1 marks

Answer: D

This question in 9700/12 May/June 2010

Q30 · Membranes within and at the surface of cells have different roles 9700/12 May/June 2010

18 Membranes within and at the surface of cells have different roles. The diagram allows the identification of the various organelles within the cell, by describing the membrane structure and function. membrane encloses cell contents encloses a structure cell surface membrane within the cell possesses pores no pores present allows exit of mRNA protein synthesis 1 2 single membrane double membrane transports lipid allows oxygen allows carbon dioxide enzymes synthesis to enter to enter 3 4 5 6 Which of the outcomes shown below correctly identifies the organelles that possess the membrane and function concerned? 1 2 3 4 5 6 A chloroplast vesicle smooth ER rough ER nucleolus mitochondrion B nucleolus rough ER vesicle smooth ER nucleus mitochondrion C nucleus rough ER vesicle smooth ER mitochondrion chloroplast D nucleus smooth ER mitochondrion rough ER vesicle chloroplast

1 marks

Answer: C

This question in 9700/12 May/June 2010

Q31 · Which observations suggest that a cell is eukaryotic? 9700/13 May/June 2010

11 Which observations suggest that a cell is eukaryotic? 0 Oo WwW > cytoplasm includes endoplasmic reticulum v x x v protein molecules are associated with the DNA K & & x ribosomes distributed through the cytoplasm v x x v key ¥ = found in eukaryotes X = not found in eukaryotes

1 marks

Answer: D

This question in 9700/13 May/June 2010

Q32 · Which structures are found in both animal and plant cells? 9700/13 May/June 2010

12 Which structures are found in both animal and plant cells? 1 centriole 2 lysosome 3 nucleolus 4 vacuole A 1 and 3 only B 2 and 4 only C 2, 3 and 4 only D 1, 2, 3 and 4

1 marks

Answer: C

This question in 9700/13 May/June 2010

Q33 · Membranes within and at the surface of cells have different roles 9700/13 May/June 2010

36 Membranes within and at the surface of cells have different roles. The diagram allows the identification of the various organelles within the cell, by describing the membrane structure and function. membrane encloses cell contents encloses a structure cell surface membrane within the cell possesses pores no pores present allows exit of mRNA protein synthesis 1 2 single membrane double membrane transports lipid allows oxygen allows carbon dioxide enzymes synthesis to enter to enter 3 4 5 6 Which of the outcomes shown below correctly identifies the organelles that possess the membrane and function concerned? 1 2 3 4 5 6 A chloroplast vesicle smooth ER rough ER nucleolus mitochondrion B nucleolus rough ER vesicle smooth ER nucleus mitochondrion C nucleus rough ER vesicle smooth ER mitochondrion chloroplast D nucleus smooth ER mitochondrion rough ER vesicle chloroplast

1 marks

Answer: C

This question in 9700/13 May/June 2010

Q34 · Which of the cell organelles, when appropriately stained, will be clearly visible under… 9700/11 Oct/Nov 2010

1. Which of the cell organelles, when appropriately stained, will be clearly visible under the high power (x400) of the light microscope? lysosomes oncoplasmic mitochondria | chloroplasts A v v x x key B v x v x ¥ = visible Cc x v v v X = not visible D x x x v

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2010

Q35 · Which is correct about the organelles listed in the table? 9700/11 Oct/Nov 2010

2 Which is correct about the organelles listed in the table? carries out contains contains transcription enzymes ribosomes 1 lysosomes no yes no 2 mitochondria yes no yes 3 rough endoplasmic reticulum yes yes yes 4 vacuoles no yes no A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4

1 marks

Answer: B

This question in 9700/11 Oct/Nov 2010

Q36 · What are the characteristics of a prokaryotic cell? 9700/11 Oct/Nov 2010

4 What are the characteristics of a prokaryotic cell? DNA endoplasmic ribosomal plasmids structure reticulum size A circular absent present small B circular present absent large C linear absent present small D linear present absent large

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2010

Q37 · Which cell organelle does not contain nucleic acid? 9700/12 Oct/Nov 2010

3 Which cell organelle does not contain nucleic acid? A chloroplast B Golgi apparatus C lysosome D ribosome

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2010

Q38 · The diameter of living cells varies considerably 9700/12 Oct/Nov 2010

4 The diameter of living cells varies considerably. The typical diameters are a eukaryote, such as a white blood cell 1.5 × 101 µm a prokaryote, such as Streptococcus 7.5 × 102 nm Use these measurements to find the maximum number of each cell type which could fit along a line 1 cm long. number of white number of blood cells Streptococcus cells A 6.7 × 103 1.3 × 105 B 6.7 × 102 1.3 × 104 C 6.7 × 101 1.3 × 103 D 6.7 × 100 1.3 × 102

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2010

Q39 · Cells consist of a number of different components 9700/12 Oct/Nov 2010

5 Cells consist of a number of different components. Which row shows the components present (/ ) in both a prokaryotic and eukaryotic cell? Golgi ; cell surface lysosomes ribosomes apparatus membrane A v v B v v Cc v v D v v

1 marks

Answer: C

This question in 9700/12 Oct/Nov 2010

Q40 · Which structures are present in a typical plant cell? 9700/11 May/June 2011

3. Which structures are present in a typical plant cell? centrioles cilia mitochondria vacuole A v v x x B v x x v Cc x v v x D x x v v key J/ = present X = absent

1 marks

Answer: D

This question in 9700/11 May/June 2011

Q41 · Plant cells are stained and then viewed through a light microscope 9700/11 May/June 2011

4 Plant cells are stained and then viewed through a light microscope. Which structures would be clearly visible at a magnification of ×400? A chloroplast grana B lysosomes C nucleoli D ribosomes

1 marks

Answer: C

This question in 9700/11 May/June 2011

Q42 · Which type of cell will contain the highest proportion of single membrane-bound… 9700/11 May/June 2011

5 Which type of cell will contain the highest proportion of single membrane-bound structures? A ciliated epithelial cell B goblet cell C red blood cell D smooth muscle cell

1 marks

Answer: B

This question in 9700/11 May/June 2011

Q43 · In an animal cell, which process is dependent upon cell surface area and which process is… 9700/11 May/June 2011

24 In an animal cell, which process is dependent upon cell surface area and which process is dependent upon cell volume? cell surface area cell volume A carbon dioxide produced oxygen used B glucose absorbed hormones detected C hormones detected carbon dioxide produced D oxygen used glucose absorbed

1 marks

Answer: C

This question in 9700/11 May/June 2011

Q44 · Membranous sacs containing products of metabolism are formed by the endoplasmic reticulum… 9700/12 May/June 2011

2 Membranous sacs containing products of metabolism are formed by the endoplasmic reticulum in cells. Where are these products used? A inside and outside the cell B inside lysosomes only C inside the cell only D outside the cell only

1 marks

Answer: A

This question in 9700/12 May/June 2011

Q45 · Which of the structures are found in photosynthetic prokaryotes? 9700/12 May/June 2011

4 Which of the structures are found in photosynthetic prokaryotes? 1 cell surface membrane 2 cellulose wall 3 mesosomes 4 ribosomes 5 chloroplasts A 1, 2, 3 and 4 only B 1, 2, 4 and 5 only C 1, 3 and 4 only D 2, 3 and 5 only

1 marks

Answer: C

This question in 9700/12 May/June 2011

Q46 · Which structures are present in a typical plant cell? 9700/13 May/June 2011

8 Which structures are present in a typical plant cell? centrioles cilia mitochondria vacuole A v v x x B v x x v Cc x v v x D x x v v key J/ = present X = absent

1 marks

Answer: D

This question in 9700/13 May/June 2011

Q47 · Which type of cell will contain the highest proportion of single membrane-bound… 9700/13 May/June 2011

15 Which type of cell will contain the highest proportion of single membrane-bound structures? A ciliated epithelial cell B goblet cell C red blood cell D smooth muscle cell

1 marks

Answer: B

This question in 9700/13 May/June 2011

Q48 · In an animal cell, which process is dependent upon cell surface area and which process is… 9700/13 May/June 2011

40 In an animal cell, which process is dependent upon cell surface area and which process is dependent upon cell volume? cell surface area cell volume A carbon dioxide produced oxygen used B glucose absorbed hormones detected C hormones detected carbon dioxide produced D oxygen used glucose absorbed

1 marks

Answer: C

This question in 9700/13 May/June 2011

Q49 · What is the diameter of a typical prokaryote, such as Streptococcus? 9700/11 Oct/Nov 2011

1 What is the diameter of a typical prokaryote, such as Streptococcus? A 7.5 × 101 nm B 7.5 × 102 nm C 7.5 × 100 µm D 7.5 × 101 µm

1 marks

Answer: B

This question in 9700/11 Oct/Nov 2011

Q50 · Which cell components contain ribosomes? 9700/11 Oct/Nov 2011

2 Which cell components contain ribosomes? 1 chloroplast 2 mitochondrion 3 nucleus 4 cytoplasm A 1, 2, 3 and 4 B 1, 2 and 3 only C 1 and 2 only D 3 and 4 only

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2011

Q51 · Where would cristae be found in a cell? 9700/11 Oct/Nov 2011

3 Where would cristae be found in a cell? 1 endoplasmic reticulum 2 Golgi apparatus 3 mitochondrion A 1 and 2 B 1 and 3 C 2 and 3 D 3 only

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2011

Q52 · Which cell components are present in all prokaryotic cells? 9700/11 Oct/Nov 2011

4 Which cell components are present in all prokaryotic cells? cell surface endoplasmic cell wall flagellum membrane reticulum A v v x v B v Xx v x Cc v v x x D x v v v key J/ = present X = not present

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2011

Q53 · In general, eukaryotic cells undergo division much slower than prokaryotic cells 9700/11 Oct/Nov 2011

6 In general, eukaryotic cells undergo division much slower than prokaryotic cells. What is the reason for this? A Eukaryotes break down the nuclear membrane during mitosis. B Eukaryotes have many more mitochondria than prokaryotes. C Prokaryotes do not contain any centrioles. D Prokaryotic cells are a lot smaller than eukaryotic cells.

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2011

Q54 · In general, eukaryotic cells undergo division much slower than prokaryotic cells 9700/13 Oct/Nov 2011

4 In general, eukaryotic cells undergo division much slower than prokaryotic cells. What is the reason for this? A Eukaryotes break down the nuclear membrane during mitosis. B Eukaryotes have many more mitochondria than prokaryotes. C Prokaryotes do not contain any centrioles. D Prokaryotic cells are a lot smaller than eukaryotic cells.

1 marks

Answer: A

This question in 9700/13 Oct/Nov 2011

Q55 · What is the diameter of a typical prokaryote, such as Streptococcus? 9700/13 Oct/Nov 2011

5 What is the diameter of a typical prokaryote, such as Streptococcus? A 7.5 × 101 nm B 7.5 × 102 nm C 7.5 × 100 µm D 7.5 × 101 µm

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2011

Q56 · Which cell components are present in all prokaryotic cells? 9700/13 Oct/Nov 2011

6 Which cell components are present in all prokaryotic cells? cell surface endoplasmic cell wall flagellum membrane reticulum A v v x v B v Xx v x Cc v v x x D x v v v key J/ = present X = not present

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2011

Q57 · Where would cristae be found in a cell? 9700/13 Oct/Nov 2011

8 Where would cristae be found in a cell? 1 endoplasmic reticulum 2 Golgi apparatus 3 mitochondrion A 1 and 2 B 1 and 3 C 2 and 3 D 3 only

1 marks

Answer: D

This question in 9700/13 Oct/Nov 2011

Q58 · Which cell components contain ribosomes? 9700/13 Oct/Nov 2011

9 Which cell components contain ribosomes? 1 chloroplast 2 mitochondrion 3 nucleus 4 cytoplasm A 1, 2, 3 and 4 B 1, 2 and 3 only C 1 and 2 only D 3 and 4 only

1 marks

Answer: A

This question in 9700/13 Oct/Nov 2011

Q59 · What are always present in prokaryote cells? 9700/11 May/June 2012

2 What are always present in prokaryote cells? A capsules B flagella C pili D ribosomes

1 marks

Answer: D

This question in 9700/11 May/June 2012

Q60 · The following are all features of eukaryotic cells 9700/11 May/June 2012

3 The following are all features of eukaryotic cells. 1 chloroplast 2 endoplasmic reticulum 3 lysosome 4 mitochondrion 5 nucleus Which of these have a double membrane? A 1, 2 and 4 B 1, 3 and 5 C 1, 4 and 5 D 2, 3 and 5

1 marks

Answer: C

This question in 9700/11 May/June 2012

Q61 · Which range of sizes would include most eukaryotic cells? 9700/12 May/June 2012

1 Which range of sizes would include most eukaryotic cells? A 1 × 102 nm to 1 µm B 1 µm to 1 × 101 µm C 1 × 101 µm to 1 × 102 µm D 1 × 102 µm to 1 × 103 µm

1 marks

Answer: C

This question in 9700/12 May/June 2012

Q62 · Which structure is present in all eukaryotic cells but not present in prokaryotic cells? 9700/12 May/June 2012

3 Which structure is present in all eukaryotic cells but not present in prokaryotic cells? A 70S ribosome B cell wall C chromatin D plasmid

1 marks

Answer: C

This question in 9700/12 May/June 2012

Q63 · What are always present in prokaryote cells? 9700/13 May/June 2012

4 What are always present in prokaryote cells? A capsules B flagella C pili D ribosomes

1 marks

Answer: D

This question in 9700/13 May/June 2012

Q64 · The following are all features of eukaryotic cells 9700/13 May/June 2012

5 The following are all features of eukaryotic cells. 1 chloroplast 2 endoplasmic reticulum 3 lysosome 4 mitochondrion 5 nucleus Which of these have a double membrane? A 1, 2 and 4 B 1, 3 and 5 C 1, 4 and 5 D 2, 3 and 5

1 marks

Answer: C

This question in 9700/13 May/June 2012

Q65 · The diagram is a drawing from an electron micrograph of a cell 9700/11 Oct/Nov 2012

1 The diagram is a drawing from an electron micrograph of a cell. Which structure indicates that this is a secretory cell? A B C D

1 marks

Answer: B

This question in 9700/11 Oct/Nov 2012

Q66 · Which of the following are found in both eukaryotic and prokaryotic cells? 9700/11 Oct/Nov 2012

3 Which of the following are found in both eukaryotic and prokaryotic cells? 1 cellulose 2 deoxyribose 3 lipids 4 ribose A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2012

Q67 · Which row correctly identifies all the locations of ribosomes in a eukaryotic cell? 9700/11 Oct/Nov 2012

4 Which row correctly identifies all the locations of ribosomes in a eukaryotic cell? attached to free in in attached to cytoplasm | mitochondria ER amelone in nucleus A Jv V V V y B WA x V x x Cc x V x V y D x x V V x key /¥ = present X = absent

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2012

Q68 · What are the characteristics of a prokaryotic cell? 9700/12 Oct/Nov 2012

2 What are the characteristics of a prokaryotic cell? endoplasmic reticulum genetic material A absent DNA B absent RNA C present DNA D present RNA

1 marks

Answer: A

This question in 9700/12 Oct/Nov 2012

Q69 · The following are all features of eukaryotic cells 9700/12 Oct/Nov 2012

3 The following are all features of eukaryotic cells. 1 chloroplast 2 Golgi apparatus 3 lysosome 4 mitochondrion 5 nucleus Which of these has a single membrane? A 1 and 2 B 2 and 3 C 3 and 4 D 4 and 5

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2012

Q70 · Plant cells are fixed, stained and viewed through a light microscope 9700/12 Oct/Nov 2012

4 Plant cells are fixed, stained and viewed through a light microscope. What would be clearly visible at x400 magnification? A cristae of mitochondria B grana of chloroplasts C nucleoli D ribosomes

1 marks

Answer: C

This question in 9700/12 Oct/Nov 2012

Q71 · Which size range would include most prokaryotic cells? 9700/12 Oct/Nov 2012

5 Which size range would include most prokaryotic cells? A B C D 1 nm 100 nm 1 µm 100 µm 1 mm

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2012

Q72 · Which feature is found in both prokaryotic and plant cells? 9700/13 Oct/Nov 2012

1 Which feature is found in both prokaryotic and plant cells? A cell wall B DNA bound to protein C endoplasmic reticulum D Golgi apparatus

1 marks

Answer: A

This question in 9700/13 Oct/Nov 2012

Q73 · What leaves the nucleus through the pores in the nuclear envelope? 9700/13 Oct/Nov 2012

2 What leaves the nucleus through the pores in the nuclear envelope? 1 DNA 2 mRNA 3 ribosomes A 1 only B 2 only C 1 and 2 D 2 and 3

1 marks

Answer: D

This question in 9700/13 Oct/Nov 2012

Q74 · What is the function of nucleoli? 9700/11 May/June 2013

3 What is the function of nucleoli? A formation and breakdown of the nuclear envelope B formation of centromeres C formation of ribosomes D formation of the spindle during nuclear division

1 marks

Answer: C

This question in 9700/11 May/June 2013

Q75 · Which organelles are required for the formation of the hydrolytic enzymes found in… 9700/11 May/June 2013

5 Which organelles are required for the formation of the hydrolytic enzymes found in lysosomes? mitochondria A B C D rough Golgi endoplasmic apparatus reticulum

1 marks

Answer: A

This question in 9700/11 May/June 2013

Q76 · The diagram is taken from an electronmicrograph of a cell which secretes enzymes 9700/11 May/June 2013

6 The diagram is taken from an electronmicrograph of a cell which secretes enzymes. Where are these enzymes made? A B C D

1 marks

Answer: C

This question in 9700/11 May/June 2013

Q77 · The diagram below is drawn from an electronmicrograph of an animal cell 9700/12 May/June 2013

3 The diagram below is drawn from an electronmicrograph of an animal cell. Which represents the same cell, seen under a light microscope at ×400 magnification?

1 marks

Answer: C

This question in 9700/12 May/June 2013

Q78 · Which features enable an organism to be identified as a prokaryote? 9700/12 May/June 2013

4 Which features enable an organism to be identified as a prokaryote? 1 cell wall 2 circular DNA 3 nucleus 4 ribosomes A 2 only B 3 only C 1 and 4 only D 2 and 4 only

1 marks

Answer: A

This question in 9700/12 May/June 2013

Q79 · The diagram shows an electronmicrograph of a typical animal cell 9700/12 May/June 2013

5 The diagram shows an electronmicrograph of a typical animal cell. X What is the function of the membrane system labelled X? A lipid synthesis B lipid synthesis and transport C protein synthesis D protein synthesis and transport

1 marks

Answer: D

This question in 9700/12 May/June 2013

Q80 · An animal cell and a plant cell are placed in distilled water 9700/12 May/June 2013

6 An animal cell and a plant cell are placed in distilled water. The animal cell swells and bursts, while the plant cell swells but does not burst. What accounts for this difference? A Animal cells have no cell wall. B Animal cells have no vacuole. C Plant cell surface membranes are partially permeable. D Plant cell walls are freely permeable.

1 marks

Answer: A

This question in 9700/12 May/June 2013

Q81 · Which plant cells do not contain a nucleus? 9700/12 May/June 2013

25 Which plant cells do not contain a nucleus? 1 companion cells 2 sieve tube elements 3 xylem vessel elements A 1 and 2 only B 1 and 3 only C 2 and 3 only D 3 only

1 marks

Answer: C

This question in 9700/12 May/June 2013

Q82 · The electronmicrograph shows part of two cells 9700/13 May/June 2013

4 The electronmicrograph shows part of two cells. W X Y Which of the labelled features enable these cells to be identified as eukaryotic? A W only B X only C W and X only D W, X and Y

1 marks

Answer: A

This question in 9700/13 May/June 2013

Q83 · When mucus is secreted from a goblet cell in the trachea, these events take place 9700/13 May/June 2013

5 When mucus is secreted from a goblet cell in the trachea, these events take place. 1 addition of carbohydrate to protein 2 fusion of the vesicle with the plasma membrane 3 secretion of a glycoprotein 4 separation of a vesicle from the Golgi apparatus What is the sequence in which these events take place? A 1 → 4 → 2 → 3 B 1 → 4 → 3 → 2 C 4 → 1 → 2 → 3 D 4 → 1 → 3 → 2

1 marks

Answer: A

This question in 9700/13 May/June 2013

Q84 · What is a function of the smooth endoplasmic reticulum? 9700/13 May/June 2013

6 What is a function of the smooth endoplasmic reticulum? A antibody synthesis B enzyme synthesis C protein synthesis D steroid synthesis

1 marks

Answer: D

This question in 9700/13 May/June 2013

Q85 · The electronmicrograph shows part of an animal cell 9700/11 Oct/Nov 2013

3 The electronmicrograph shows part of an animal cell. What will be synthesised in large quantities in this cell? 1 ATP 2 glucose 3 RNA A 1 only B 2 only C 1 and 3 only D 1, 2 and 3

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2013

Q86 · Which statements about a typical eukaryotic cell are correct? 9700/11 Oct/Nov 2013

4 Which statements about a typical eukaryotic cell are correct? 1 It is smaller than 2 µm. 2 It has a nucleolus. 3 It has linear DNA. 4 It only has small (70S) ribosomes. A 1 and 2 only B 1 and 4 only C 2 and 3 only D 3 and 4 only

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2013

Q87 · Which animal cells would have the most Golgi apparatus? 9700/11 Oct/Nov 2013

5 Which animal cells would have the most Golgi apparatus? A ciliated epithelial cells B goblet cells C red blood cells D smooth muscle cells

1 marks

Answer: B

This question in 9700/11 Oct/Nov 2013

Q88 · Which row shows features of a typical eukaryotic cell? 9700/12 Oct/Nov 2013

4 Which row shows features of a typical eukaryotic cell? cell size nucleus DNA ribosome size A < 2µm absent linear large 80S B < 2µm present circular small 70S C > 2µm present circular small 70S D > 2µm present linear large 80S

1 marks

Answer: D

This question in 9700/12 Oct/Nov 2013

Q89 · Goblet cells are found in the trachea 9700/12 Oct/Nov 2013

31 Goblet cells are found in the trachea. Which organelles would be found in large numbers in a goblet cell? 1 lysosomes 2 mitochondria 3 rough endoplasmic reticulum 4 secretory vesicles A 1, 2 and 3 only B 2, 3 and 4 only C 1 and 3 only D 2 and 4 only

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2013

Q90 · Which statements about a typical prokaryotic cell are correct? 9700/13 Oct/Nov 2013

4 Which statements about a typical prokaryotic cell are correct? 1 It is smaller than 2 µm. 2 It has a nucleus. 3 Its has circular DNA. 4 It has small (70S) ribosomes. A 1 and 2 only B 1 and 3 only C 1, 3 and 4 only D 2, 3 and 4 only

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2013

Q91 · Where would cisternae be found in a cell? 9700/11 May/June 2014

2 Where would cisternae be found in a cell? 1 endoplasmic reticulum 2 Golgi apparatus 3 mitochondrion A 1 and 2 B 1 and 3 C 2 and 3 D 1 only

1 marks

Answer: A

This question in 9700/11 May/June 2014

Q92 · What is the order of size of cell structures? 9700/11 May/June 2014

4 What is the order of size of cell structures? largest smallest A centrioles ribosomes lysosomes nucleoli B lysosomes nucleoli centrioles ribosomes C nucleoli lysosomes centrioles ribosomes D nucleoli centrioles ribosomes lysosomes

1 marks

Answer: C

This question in 9700/11 May/June 2014

Q93 · The diagram shows some similarities between chloroplasts, mitochondria and typical… 9700/11 May/June 2014

5 The diagram shows some similarities between chloroplasts, mitochondria and typical prokaryotes. 1 2 3 4 5 Which row is correct? 1 2 3 4 5 A chloroplasts circular DNA mitochondria 80S ribosomes prokaryotes B chloroplasts 80S ribosomes mitochondria circular DNA prokaryotes C prokaryotes circular DNA mitochondria circular DNA chloroplasts D prokaryotes 70S ribosomes chloroplasts 80S ribosomes mitochondria

1 marks

Answer: C

This question in 9700/11 May/June 2014

Q94 · Which organelle does not contain a partially permeable membrane? 9700/12 May/June 2014

3 Which organelle does not contain a partially permeable membrane? A Golgi apparatus B lysosome C mitochondrion D ribosome

1 marks

Answer: D

This question in 9700/12 May/June 2014

Q95 · The diagram shows an electron micrograph of a plant cell 9700/12 May/June 2014

4 The diagram shows an electron micrograph of a plant cell. X Y Z What do structures X, Y and Z contain? X Y Z A air starch DNA and RNA B cell sap chlorophyll protein C mineral ions starch DNA and RNA D water mineral ions starch

1 marks

Answer: C

This question in 9700/12 May/June 2014

Q96 · An amino acid enters a cell and is then used to synthesise an enzyme secreted by the cell 9700/12 May/June 2014

5 An amino acid enters a cell and is then used to synthesise an enzyme secreted by the cell. What is the sequence of cell structures involved in the synthesis of the enzyme? first last A endoplasmic Golgi ribosome exocytotic reticulum apparatus vesicle B endoplasmic ribosome Golgi cell surface reticulum apparatus membrane C ribosome endoplasmic Golgi exocytotic reticulum apparatus vesicle D ribosome Golgi endoplasmic cell surface apparatus reticulum membrane

1 marks

Answer: C

This question in 9700/12 May/June 2014

Q97 · The diagram shows some similarities between chloroplasts, mitochondria and typical… 9700/12 May/June 2014

6 The diagram shows some similarities between chloroplasts, mitochondria and typical prokaryotes. 1 2 3 4 5 Which row is correct? 1 2 3 4 5 A chloroplasts 70S ribosomes prokaryotes 70S ribosomes mitochondria B chloroplasts 70S ribosomes prokaryotes 80S ribosomes mitochondria C mitochondria 70S ribosomes chloroplasts 80S ribosomes prokaryotes D mitochondria 80S ribosomes chloroplasts 80S ribosomes prokaryotes

1 marks

Answer: A

This question in 9700/12 May/June 2014

Q98 · The diameter of living cells varies considerably 9700/13 May/June 2014

2 The diameter of living cells varies considerably. The diameter of a typical eukaryotic cell is 1.5 × 101 µm. The diameter of a typical prokaryotic cell is 7.5 × 102 nm. Using these measurements, what is the maximum number of each cell type which could fit along a line 1 cm long? number of white number of blood cells Streptococcus cells A 6.7 × 104 1.3 × 102 B 6.7 × 103 1.3 × 105 C 6.7 × 102 1.3 × 104 D 6.7 × 101 1.3 × 103

1 marks

Answer: C

This question in 9700/13 May/June 2014

Q99 · In order to complete the sentence below, what is the correct process and cell structure? 9700/13 May/June 2014

3 In order to complete the sentence below, what is the correct process and cell structure? Cells which have a high rate of ……1…… will have many ……2…… . 1 2 A DNA replication lysosomes B exocytosis Golgi vesicles C facilitated diffusion mitochondria D phospholipid production ribosomes

1 marks

Answer: B

This question in 9700/13 May/June 2014

Q100 · A cell secreting glycoproteins is supplied with radioactively-labelled glucose which is… 9700/13 May/June 2014

4 A cell secreting glycoproteins is supplied with radioactively-labelled glucose which is detected in the cytoplasm first. In which organelle would radioactively-labelled glucose be detected next? A B C D

1 marks

Answer: B

This question in 9700/13 May/June 2014

Q101 · The diagram shows some similarities between chloroplasts, mitochondria and typical… 9700/13 May/June 2014

5 The diagram shows some similarities between chloroplasts, mitochondria and typical prokaryotes. 1 2 3 4 5 Which row is correct? 1 2 3 4 5 A chloroplasts circular DNA mitochondria linear DNA prokaryotes B mitochondria linear DNA chloroplasts 70S ribosomes prokaryotes C mitochondria 70S ribosomes chloroplasts linear DNA prokaryotes D prokaryotes 70S ribosomes mitochondria 70S ribosomes chloroplasts

1 marks

Answer: D

This question in 9700/13 May/June 2014

Q102 · Which part of the cell is often continuous with the rough endoplasmic reticulum? 9700/11 Oct/Nov 2014

2 Which part of the cell is often continuous with the rough endoplasmic reticulum? A cell surface membrane B Golgi apparatus C mitochondrion D nuclear envelope

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2014

Q103 · Which structures are found in both chloroplasts and mitochondria? 9700/11 Oct/Nov 2014

3 Which structures are found in both chloroplasts and mitochondria? 1 70S ribsomes 2 80S ribsomes 3 circular DNA A 1 and 3 B 2 and 3 C 1 only D 3 only

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2014

Q104 · Tay-Sachs disease occurs when cells are unable to produce an enzyme, leading to a build… 9700/11 Oct/Nov 2014

4 Tay-Sachs disease occurs when cells are unable to produce an enzyme, leading to a build up of certain lipids in cells. Which cell structure would not function correctly, resulting in the disease? A Golgi apparatus B lysosome C mitochondrion D smooth endoplasmic reticulum

1 marks

Answer: B

This question in 9700/11 Oct/Nov 2014

Q105 · Which structures are present in a cell of Plasmodium? 9700/11 Oct/Nov 2014

5 Which structures are present in a cell of Plasmodium? Golgi ribosomes apparatus B A C D mitochondria

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2014

Q106 · The statements are all descriptions of cell structures 9700/12 Oct/Nov 2014

3 The statements are all descriptions of cell structures. 1 surrounded by a single membrane and enclosing a large fluid-filled space 2 surrounded by a single membrane and enclosing inactivated enzymes 3 formed by two membranes enclosing a matrix, the inner membrane is folded 4 formed by a membrane that has flattened sacs and tubular structures inter-connected throughout the cell 5 formed of nucleic acid and protein attached to membranes or free in the cytoplasm Which row shows the typical cell in which these cell structures are found? plant cell animal cell A 1, 2, 3 and 4 1, 2, 3 and 5 B 1, 3, 4 and 5 2, 3, 4 and 5 C 2, 4 and 5 1, 4 and 5 D 3, 4 and 5 only 2, 3 and 5 only

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2014

Q107 · Which structures are found in both typical eukaryotic cells and typical prokaryotic cells? 9700/12 Oct/Nov 2014

4 Which structures are found in both typical eukaryotic cells and typical prokaryotic cells? 1 70S ribsomes 2 80S ribosomes 3 circular DNA A 1, 2 and 3 B 1 and 3 only C 1 only D 2 only

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2014

Q108 · Which sequence shows some of the stages in the production and secretion of an enzyme? 9700/12 Oct/Nov 2014

5 Which sequence shows some of the stages in the production and secretion of an enzyme? A Golgi apparatus → ribosome → rough endoplasmic reticulum → mRNA B mRNA → smooth endoplasmic reticulum → Golgi apparatus → vesicle C ribosome → rough endoplasmic reticulum → vesicle → Golgi apparatus D smooth endoplasmic reticulum → mRNA → vesicle → ribosome

1 marks

Answer: C

This question in 9700/12 Oct/Nov 2014

Q109 · Density gradient centrifuges are used to separate cell structures by their relative… 9700/13 Oct/Nov 2014

2 Density gradient centrifuges are used to separate cell structures by their relative density. Larger cell structures have greater density and sink further down the centrifuge tube. What is the correct order of the cell structures, starting from the top of the centrifuge tube? A chloroplasts → nuclei → mitochondria → ribosomes B nuclei → chloroplasts → mitochondria → ribosomes C ribosomes → chloroplasts → mitochondria → nuclei D ribosomes → mitochondria → chloroplasts → nuclei

1 marks

Answer: D

This question in 9700/13 Oct/Nov 2014

Q110 · Red blood cells have a diameter of 7000 nm 9700/13 Oct/Nov 2014

3 Red blood cells have a diameter of 7000 nm. Pancreatic cells have a diameter of diameter 35 µm. What is correct about the relative sizes of these cells? A The red blood cells are 5 times larger. B The red blood cells are 50 times larger. C The red blood cells are 5 times smaller. D The red blood cells are 50 times smaller.

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2014

Q111 · Which cell structure shown in the electronmicrograph is the site of protein modification… 9700/13 Oct/Nov 2014

4 Which cell structure shown in the electronmicrograph is the site of protein modification and packaging? D A C B

1 marks

Answer: D

This question in 9700/13 Oct/Nov 2014

Q112 · The diagram shows some similarities between typical prokaryotes, chloroplasts and… 9700/13 Oct/Nov 2014

5 The diagram shows some similarities between typical prokaryotes, chloroplasts and mitochondria. 1 2 3 4 5 Which is correct? 1 2 3 4 5 A chloroplasts circular DNA and mitochondria circular DNA and prokaryotes 70S ribosomes 70S ribosomes B chloroplasts circular DNA and prokaryotes circular DNA and mitochondria 80S ribosomes 80S ribosomes C mitochondria linear DNA and chloroplasts linear DNA and prokaryotes 70S ribosomes 70S ribosomes D mitochondria linear DNA and prokaryotes linear DNA and chloroplasts 80S ribosomes 80S ribosomes

1 marks

Answer: A

This question in 9700/13 Oct/Nov 2014

Q113 · The diagram shows a high-power drawing of a bacterium 9700/11 May/June 2015

2 The diagram shows a high-power drawing of a bacterium. capsule cell wall cell membrane ribosome DNA Which three components are found in both this bacterium and an animal cell? A capsule, cell membrane and cell wall B capsule, DNA and ribosome C cell membrane, cell wall and DNA D cell membrane, DNA and ribosome

1 marks

Answer: D

This question in 9700/11 May/June 2015

Q114 · Which structures are found in typical eukaryotic cells? 9700/11 May/June 2015

4 Which structures are found in typical eukaryotic cells? 1 70S ribosomes 2 80S ribosomes 3 linear DNA (chromosomes) 4 circular DNA A 1, 2, 3 and 4 B 1, 2 and 3 only C 1 and 4 only D 2 and 3 only

1 marks

Answer: A

This question in 9700/11 May/June 2015

Q115 · What is the function of the nucleolus? 9700/11 May/June 2015

5 What is the function of the nucleolus? A The formation and breakdown of the nuclear envelope. B The formation of rough endoplasmic reticulum. C The synthesis of ribosomal proteins. D The synthesis of rRNA.

1 marks

Answer: D

This question in 9700/11 May/June 2015

Q116 · What is the function of plasmodesmata in plant cells? 9700/12 May/June 2015

3 What is the function of plasmodesmata in plant cells? A to act as a barrier to water soluble substances B to allow active transport of ions and sucrose between cells C to allow the symplastic movement of substances between cells D to enable cells to recognise each other

1 marks

Answer: C

This question in 9700/12 May/June 2015

Q117 · Which size of ribosome is found in both chloroplasts and mitochondria? 9700/12 May/June 2015

4 Which size of ribosome is found in both chloroplasts and mitochondria? A 60S B 70S C 80S D 90S

1 marks

Answer: B

This question in 9700/12 May/June 2015

Q118 · Which function is correct for the description of the cell structure? 9700/12 May/June 2015

5 Which function is correct for the description of the cell structure? function cell structure A organises microtubules to membrane-bound sacs, produce the spindle arranged as a flattened sac B packages hydrolytic enzymes non-membrane bound used in cell cylindrical structures C synthesises lipids membranes which surround an enclosed inner cavity D synthesises polypeptides membrane bound spherical structure

1 marks

Answer: C

This question in 9700/12 May/June 2015

Q119 · Ribosomes consist of two subunits, each containing rRNA 9700/12 May/June 2015

6 Ribosomes consist of two subunits, each containing rRNA. An analysis of all the 70S ribosomes from a single cell of the bacterium, Escherichia coli, showed that there were: • 38 000 rRNA molecules • 2 main types of rRNA molecule • 19 000 copies of each type of rRNA molecule How many 70S ribosomes were there in the E. coli cell? A 9500 B 19 000 C 38 000 D 76 000

1 marks

Answer: B

This question in 9700/12 May/June 2015

Q120 · What are found in both mitochondria and typical prokaryotic cells? 9700/13 May/June 2015

1 What are found in both mitochondria and typical prokaryotic cells? A 70S ribosomes and circular DNA B 70S ribosomes only C 80S ribosomes and circular DNA D circular DNA only

1 marks

Answer: A

This question in 9700/13 May/June 2015

Q121 · Which comparison of a phloem companion cell with a B-lymphocyte is correct? 9700/13 May/June 2015

3 Which comparison of a phloem companion cell with a B-lymphocyte is correct? A Both cell types have proteins embedded in their cell surface membranes. B B-lymphocytes have a spherical nucleus but companion cells do not have a nucleus. C Companion cells always contain chloroplasts, which are not present in B-lymphocytes. D Neither B-lymphocytes nor companion cells possess plasmodesmata.

1 marks

Answer: A

This question in 9700/13 May/June 2015

Q122 · Which structures in plant cells have a double membrane? 9700/13 May/June 2015

5 Which structures in plant cells have a double membrane? A chloroplasts and vacuoles B lysosomes and nuclei C mitochondria and vacuoles D nuclei and mitochondria

1 marks

Answer: D

This question in 9700/13 May/June 2015

Q123 · What is the diameter of a typical prokaryote, such as Streptococcus? 9700/13 May/June 2015

6 What is the diameter of a typical prokaryote, such as Streptococcus? A 7.5 × 101 nm B 7.5 × 102 nm C 7.5 × 100 µm D 7.5 × 101 µm

1 marks

Answer: B

This question in 9700/13 May/June 2015

Q124 · Which size of ribosome is found in chloroplasts and typical prokaryotic cells? 9700/11 Oct/Nov 2015

1 Which size of ribosome is found in chloroplasts and typical prokaryotic cells? A 60S B 70S C 80S D 90S

1 marks

Answer: B

This question in 9700/11 Oct/Nov 2015

Q125 · Pancreatic cells have a diameter of 35 µm 9700/11 Oct/Nov 2015

2 Pancreatic cells have a diameter of 35 µm. Red blood cells have a diameter of 7000 nm. Which statement is correct? A Pancreatic cells are 5 times larger than red blood cells. B Pancreatic cells are 50 times larger than red blood cells. C Pancreatic cells are 5 times smaller than red blood cells. D Pancreatic cells are 50 times smaller than red blood cells.

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2015

Q126 · Which process occurs in a mature red blood cell? 9700/11 Oct/Nov 2015

3 Which process occurs in a mature red blood cell? A active transport B cell division C transcription D translation

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2015

Q127 · Which structures are present in a Vibrio cholerae cell? 9700/11 Oct/Nov 2015

4 Which structures are present in a Vibrio cholerae cell? circular DNA 80S A ribosomes D C B mitochondria

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2015

Q128 · Which features of microvilli and root hairs are correct? 9700/11 Oct/Nov 2015

5 Which features of microvilli and root hairs are correct? cannot be more than one increase cell resolved with contain present on a surface area the light vacuoles cell microscope A microvilli microvilli root hairs microvilli B microvilli root hairs microvilli microvilli C root hairs microvilli root hairs root hairs D root hairs root hairs microvilli root hairs

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2015

Q129 · Which order of organelles is correct when a protein is synthesised and secreted? 9700/11 Oct/Nov 2015

6 Which order of organelles is correct when a protein is synthesised and secreted? A Golgi body → lysosome → ribosome → nucleus B nucleus → ribosome → Golgi body → vesicle C ribosome → nucleus → lysosome → Golgi body D vesicle → Golgi body → nucleus → ribosome

1 marks

Answer: B

This question in 9700/11 Oct/Nov 2015

Q130 · Which size of ribosome is found in mitochondria? 9700/12 Oct/Nov 2015

1 Which size of ribosome is found in mitochondria? A 60S B 70S C 80S D 90S

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2015

Q131 · Which features of microvilli and root hairs are correct? 9700/12 Oct/Nov 2015

3 Which features of microvilli and root hairs are correct? cannot be more than one increase cell resolved with contain present on a surface area the light vacuoles cell microscope A microvilli microvilli root hairs root hairs B microvilli root hairs microvilli microvilli C root hairs microvilli root hairs microvilli D root hairs root hairs microvilli root hairs

1 marks

Answer: C

This question in 9700/12 Oct/Nov 2015

Q132 · Lysosomes have a variety of different shapes and sizes, making them difficult to identify 9700/12 Oct/Nov 2015

4 Lysosomes have a variety of different shapes and sizes, making them difficult to identify. What describes a lysosome? A a vesicle containing enzymes, enclosed by a double membrane, that is budded off the endoplasmic reticulum B a vesicle containing hydrolytic enzymes and surrounded by a single membrane, found only in phagocytes C a vesicle enclosed by a single membrane, containing several different hydrolytic enzymes that may act inside or outside the cell D a vesicle surrounded by a double membrane, containing enzymes which can hydrolyse damaged organelles in a cell

1 marks

Answer: C

This question in 9700/12 Oct/Nov 2015

Q133 · Radioactively-labelled amino acids were introduced into a tracheal cell that uses them to… 9700/12 Oct/Nov 2015

5 Radioactively-labelled amino acids were introduced into a tracheal cell that uses them to make mucus (a glycoprotein). 1 2 3 4 What route will the amino acids take? first last A 1 2 3 4 B 1 4 3 2 C 4 1 2 3 D 4 3 2 1

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2015

Q134 · Which structures are present in a Vibrio cholerae cell? 9700/12 Oct/Nov 2015

6 Which structures are present in a Vibrio cholerae cell? circular 80S DNA ribosomes B A D C cell wall

1 marks

Answer: D

This question in 9700/12 Oct/Nov 2015

Q135 · Which size of ribosome is found in chloroplasts? 9700/13 Oct/Nov 2015

1 Which size of ribosome is found in chloroplasts? A 60S B 70S C 80S D 90S

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2015

Q136 · Which features of cilia and root hairs are correct? 9700/13 Oct/Nov 2015

3 Which features of cilia and root hairs are correct? cannot be more than one increase cell resolved with contain present on a surface area the light vacuoles cell microscope A cilia cilia root hairs root hairs B cilia root hairs cilia cilia C root hairs cilia root hairs cilia D root hairs root hairs cilia root hairs

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2015

Q137 · The diagram shows a typical animal cell 9700/13 Oct/Nov 2015

4 The diagram shows a typical animal cell. Each labelled structure is involved with the synthesis of biological molecules. 1 2 3 4 Within which structures are glycoproteins, proteins and steroids synthesised? glycoproteins proteins steroids A 2 3 1 B 2 3 4 C 4 2 3 D 4 1 2

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2015

Q138 · What is present in a Vibrio cholerae cell? 9700/13 Oct/Nov 2015

5 What is present in a Vibrio cholerae cell? cell Golgi wall body A B C D rough endoplasmic reticulum

1 marks

Answer: A

This question in 9700/13 Oct/Nov 2015

Q139 · What is correct for a typical prokaryotic cell? 9700/13 Oct/Nov 2015

6 What is correct for a typical prokaryotic cell? cell wall cell diameter ribosomes A cellulose 1-5 µm 70S B cellulose 5-40 µm 70S and 80S C peptidoglycan 1-5 µm 70S D peptidoglycan 5-40 µm 70S and 80S

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2015

Q140 · The electron micrograph shows part of a eukaryotic cell 9700/12 Feb/March 2016

2 The electron micrograph shows part of a eukaryotic cell. Which of the labelled organelles is a site of protein synthesis? A B C D

1 marks

Answer: B

This question in 9700/12 Feb/March 2016

Q141 · Inside a cell, a damaged mitochondrion can be surrounded and enclosed by a membrane to… 9700/12 Feb/March 2016

3 Inside a cell, a damaged mitochondrion can be surrounded and enclosed by a membrane to form a vesicle. What happens after the fusion of a lysosome with the vesicle? A ATP production by the mitochondrion increases. B Enzymes from the lysosome repair the mitochondrion. C Hydrolytic enzymes catalyse the breakdown of the mitochondrion. D The mitochondrion is released from the cell by exocytosis.

1 marks

Answer: C

This question in 9700/12 Feb/March 2016

Q142 · Which structures will be present in a cell that causes cholera? 9700/12 Feb/March 2016

5 Which structures will be present in a cell that causes cholera? 1 circular DNA 2 naked DNA 3 70S ribosomes A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: A

This question in 9700/12 Feb/March 2016

Q143 · The drawing from an electron micrograph shows a ciliated epithelial cell, magnified… 9700/11 May/June 2016

2 The drawing from an electron micrograph shows a ciliated epithelial cell, magnified ×1500, which is found in the trachea. Line X-Y shows the widest dimension of the cell. X Y What is the number of these cells that could be found along a 1 cm length of the trachea? A 5 B 50 C 500 D 5000

1 marks

Answer: C

This question in 9700/11 May/June 2016

Q144 · What are correct locations of ribosomes in the typical eukaryotic cell? 9700/11 May/June 2016

3 What are correct locations of ribosomes in the typical eukaryotic cell? 1 free in the cytoplasm 2 attached to the outside of the endoplasmic reticulum 3 attached to the inside of the endoplasmic reticulum A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: B

This question in 9700/11 May/June 2016

Q145 · What are found in both chloroplasts and typical prokaryotic cells? 9700/11 May/June 2016

5 What are found in both chloroplasts and typical prokaryotic cells? A 70S ribosomes and circular DNA B 70S ribosomes only C 80S ribosomes and circular DNA D circular DNA only

1 marks

Answer: A

This question in 9700/11 May/June 2016

Q146 · Which statements about both mitochondria and chloroplasts are correct? 9700/12 May/June 2016

2 Which statements about both mitochondria and chloroplasts are correct? 1 They contain 80S ribosomes. 2 They contain circular DNA molecules. 3 They produce ATP. A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: D

This question in 9700/12 May/June 2016

Q147 · Which range of sizes would include most eukaryotic cells? 9700/12 May/June 2016

3 Which range of sizes would include most eukaryotic cells? A 1 × 102 nm to 1 µm B 1 µm to 1 × 101 µm C 1 × 101 µm to 1 × 102 µm D 1 × 102 µm to 1 × 103 µm

1 marks

Answer: C

This question in 9700/12 May/June 2016

Q148 · A scientist carried out an experiment to separate the organelles in an animal cell by mass 9700/12 May/June 2016

4 A scientist carried out an experiment to separate the organelles in an animal cell by mass. The scientist mixed the cells with a buffer solution which had the same water potential as the cells. He then broke the cells open with a blender to release the organelles. The extracted mixture was filtered and then spun in a centrifuge at a speed that separates the heaviest organelle. This organelle sank to the bottom, forming a solid pellet, 1. liquid above pellet solid pellet The liquid above pellet 1 was poured into a clean centrifuge tube and spun in the centrifuge at a higher speed to separate the next heaviest organelle. This organelle sank to the bottom, forming a solid pellet, 2. He repeated this procedure twice more to obtain pellet 3 and pellet 4, each containing a single organelle. What is the function of the organelle extracted in pellet 4? A digestion of old organelles B production of ATP C production of mRNA D synthesis of protein

1 marks

Answer: D

This question in 9700/12 May/June 2016

Q149 · For which cell component would nanometres be the most appropriate unit of measurement? 9700/13 May/June 2016

2 For which cell component would nanometres be the most appropriate unit of measurement? A a cell surface membrane B a chloroplast C a mitochondrion D a nucleolus

1 marks

This question in 9700/13 May/June 2016

Q150 · Which organelles are required for the formation of lysosomes containing hydrolytic… 9700/13 May/June 2016

3 Which organelles are required for the formation of lysosomes containing hydrolytic enzymes? mitochondria B A D C rough Golgi endoplasmic apparatus reticulum

1 marks

This question in 9700/13 May/June 2016

Q151 · What are found in both chloroplasts and mitochondria? 9700/13 May/June 2016

4 What are found in both chloroplasts and mitochondria? A 70S ribosomes only B 70S ribosomes and circular DNA C 80S ribosomes and circular DNA D circular DNA only

1 marks

This question in 9700/13 May/June 2016

Q152 · Goblet cells are found in the trachea 9700/13 May/June 2016

33 Goblet cells are found in the trachea. Which organelles would be found in large numbers in a goblet cell? Golgi mitochondria ribosomes body J key ¥ = present in large numbers X = not present in large numbers 0 0O WwW > Ke 4K QS 4 v v x

1 marks

This question in 9700/13 May/June 2016

Q153 · Which parts of a cell contain ribosomes? 9700/11 Oct/Nov 2016

3 Which parts of a cell contain ribosomes? 1 chloroplast 2 mitochondrion 3 nucleus 4 cytoplasm A 1, 2, 3 and 4 B 1, 2 and 3 only C 1, 2 and 4 only D 3 and 4 only

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2016

Q154 · The electron micrograph shows part of two eukaryotic cells 9700/11 Oct/Nov 2016

4 The electron micrograph shows part of two eukaryotic cells. W X Y Which features are also found in prokaryotes? A W only B X only C X and Y only D W, X and Y

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2016

Q155 · Which of the structures are found in photosynthetic prokaryotes? 9700/11 Oct/Nov 2016

5 Which of the structures are found in photosynthetic prokaryotes? 1 cell surface membrane 2 cellulose wall 3 ribosomes 4 chloroplasts A 1, 2, 3 and 4 B 1, 2 and 3 only C 1 and 3 only D 2 and 4 only

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2016

Q156 · Which structure is only found in typical eukaryotic animal cells? 9700/13 Oct/Nov 2016

1 Which structure is only found in typical eukaryotic animal cells? A cell surface membrane B centriole C Golgi body D ribosome

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2016

Q157 · Which letter on the logarithmic scale corresponds to the size of a typical prokaryote? 9700/13 Oct/Nov 2016

2 Which letter on the logarithmic scale corresponds to the size of a typical prokaryote? 1 mm 100 µm 10 µm A 1 µm B 100 nm C 10 nm D 1 nm

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2016

Q158 · Which statement is correct? 9700/13 Oct/Nov 2016

4 Which statement is correct? A Prokaryotes and chloroplasts have circular DNA where genes carrying the code for cell walls are located. B Prokaryotes and chloroplasts have 70S ribosomes that are the sites for translation and polypeptide synthesis. C Prokaryotes and mitochondria have an outer membrane and a separate inner, folded membrane where ATP synthesis occurs. D Prokaryotes and mitochondria have double-stranded linear DNA where genes carrying coded information are located.

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2016

Q159 · The diagram shows a typical animal cell 9700/13 Oct/Nov 2016

5 The diagram shows a typical animal cell. Which features are also found in both plant cells and prokaryotic cells? 1 2 3 4 5 6 A v v v v v v key B v Jv x x x J /¥ = present Cc v x x v x x X = absent D x v v v v x

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2016

Q160 · What do pathogens of HIV/AIDS, malaria and TB have in common? 9700/13 Oct/Nov 2016

36 What do pathogens of HIV/AIDS, malaria and TB have in common? they have a cell they have they have surface membrane genes ribosomes A v v v B v x x Cc x v v D x v x key ¥ present in each causative agent X not present in each causative agent

1 marks

Answer: D

This question in 9700/13 Oct/Nov 2016

Q161 · The diagram shows the ultrastructure of a typical animal cell 9700/12 Feb/March 2017

1 The diagram shows the ultrastructure of a typical animal cell. Which structure synthesises and transports lipids? D A B C

1 marks

Answer: C

This question in 9700/12 Feb/March 2017

Q162 · Some features of cells are listed 9700/12 Feb/March 2017

4 Some features of cells are listed. 1 cytoplasm 2 cell surface membrane 3 ribosomes Which features are found in both animal and prokaryotic cells? A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: A

This question in 9700/12 Feb/March 2017

Q163 · Which size of ribosomes is found in chloroplasts? 9700/12 Feb/March 2017

5 Which size of ribosomes is found in chloroplasts? A 60S B 70S C 80S D 90S

1 marks

Answer: B

This question in 9700/12 Feb/March 2017

Q164 · In which of these organelles is ATP synthesised? 9700/12 Feb/March 2017

6 In which of these organelles is ATP synthesised? Golgi body B A C mitochondrion D chloroplast

1 marks

Answer: D

This question in 9700/12 Feb/March 2017

Q165 · The electron micrograph shows part of two cells 9700/11 May/June 2017

2 The electron micrograph shows part of two cells. W X Y Which labelled features identify these cells as eukaryotic? A W, X and Y B W and X only C W only D X only

1 marks

Answer: C

This question in 9700/11 May/June 2017

Q166 · Plant cells are fixed, stained and viewed using a student microscope 9700/11 May/June 2017

3 Plant cells are fixed, stained and viewed using a student microscope. The light source was natural light. What would be clearly visible at ×400 magnification? A cristae of mitochondria B grana of chloroplasts C nucleoli D ribosomes

1 marks

Answer: C

This question in 9700/11 May/June 2017

Q167 · Some secretory cells synthesise and release glycoproteins 9700/11 May/June 2017

5 Some secretory cells synthesise and release glycoproteins. What is the correct order of the sequence of events as they occur in the secretory cell? 1 exocytosis 2 product accumulates in secretory vesicle 3 mRNA binds to ribosomes 4 synthesis of glycoprotein A 3, 4, 1, 2 B 3, 4, 2, 1 C 4, 3, 1, 2 D 4, 3, 2, 1

1 marks

Answer: B

This question in 9700/11 May/June 2017

Q168 · A scientist carried out an experiment to separate the organelles in an animal cell by mass 9700/11 May/June 2017

6 A scientist carried out an experiment to separate the organelles in an animal cell by mass. The scientist mixed the cells with a buffer solution which had the same water potential as the cells. He then broke the cells open with a blender to release the organelles. The extracted mixture was filtered and then spun in a centrifuge at a speed to separate the heaviest organelle. This sank to the bottom, forming a solid pellet, 1. liquid above pellet solid pellet The liquid above pellet 1 was poured into a clean centrifuge tube and spun in the centrifuge at a higher speed to separate the next heaviest organelle. This organelle sank to the bottom, to form a solid pellet, 2. He repeated this procedure twice more to obtain pellet 3 and pellet 4, each containing a single organelle. What is the function of the organelle extracted in pellet 3? A digestion of old organelles B production of ATP C synthesis of mRNA D synthesis of protein

1 marks

Answer: A

This question in 9700/11 May/June 2017

Q169 · Which organelles are enclosed in a single phospholipid bilayer and contain hydrolytic… 9700/12 May/June 2017

1 Which organelles are enclosed in a single phospholipid bilayer and contain hydrolytic enzymes? A endocytotic vesicles B Golgi body C lysosomes D mitochondria

1 marks

Answer: C

This question in 9700/12 May/June 2017

Q170 · The DNA of prokaryotes is naked and circular 9700/12 May/June 2017

2 The DNA of prokaryotes is naked and circular. Which statement describes how the DNA of eukaryotes differs from that of prokaryotes? A It has a nuclear envelope around it and is a double helix. B It has a nuclear envelope around it and is circular. C It has proteins attached to it and is a double helix. D It has proteins attached to it and is linear.

1 marks

Answer: D

This question in 9700/12 May/June 2017

Q171 · What are found in chloroplasts and mitochondria? 9700/12 May/June 2017

4 What are found in chloroplasts and mitochondria? 1 DNA 2 70S ribosomes 3 mRNA A 1, 2 and 3 B 1 and 2 only C 1 only D 2 and 3 only

1 marks

Answer: A

This question in 9700/12 May/June 2017

Q172 · Where are cisternae found in a cell? 9700/13 May/June 2017

1 Where are cisternae found in a cell? 1 endoplasmic reticulum 2 Golgi body 3 mitochondrion A 1 and 2 B 1 and 3 C 1 only D 2 and 3

1 marks

Answer: A

This question in 9700/13 May/June 2017

Q173 · It is possible for a bacterium to synthesise a eukaryotic protein 9700/13 May/June 2017

3 It is possible for a bacterium to synthesise a eukaryotic protein. This involves introducing a eukaryotic gene into the bacterial DNA, which can be translated. What explains why a bacterial cell can produce a eukaryotic protein but cannot produce a eukaryotic glycoprotein? A Bacteria do not have 70S ribosomes. B Bacteria do not have a nuclear envelope. C Bacteria do not have Golgi bodies. D Bacteria do not have mitochondria.

1 marks

Answer: C

This question in 9700/13 May/June 2017

Q174 · Which structures are found in both typical eukaryotic cells and typical prokaryotic cells? 9700/13 May/June 2017

4 Which structures are found in both typical eukaryotic cells and typical prokaryotic cells? 1 70S ribosomes 2 80S ribosomes 3 circular DNA A 1, 2 and 3 B 1 and 3 only C 1 only D 2 only

1 marks

Answer: B

This question in 9700/13 May/June 2017

Q175 · One of the smallest viruses is the polio virus, which has a diameter of approximately 30… 9700/12 Oct/Nov 2017

2 One of the smallest viruses is the polio virus, which has a diameter of approximately 30 nm. In 2003, the Mimivirus was discovered which has a diameter of approximately 680 nm. In 2013, the Pandoravirus was discovered which has a diameter of approximately 1000 nm. Which row correctly matches a cell structure with a virus that has a similar approximate size? polio virus Mimivirus Pandoravirus A lysosome nucleolus nucleus B nucleolus lysosome mitochondrion C nucleolus mitochondrion lysosome D ribosome lysosome mitochondrion

1 marks

Answer: D

This question in 9700/12 Oct/Nov 2017

Q176 · Which cell components are present in all prokaryotic cells? 9700/12 Oct/Nov 2017

3. Which cell components are present in all prokaryotic cells? cell surface endoplasmic membrane cell wall reticulum flagellum A JV V x y B JV JV x x Cc JV x W, x D x JV W, y key / = present X = not present

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2017

Q177 · The electron micrograph shows part of an animal cell 9700/12 Oct/Nov 2017

4 The electron micrograph shows part of an animal cell. What will be synthesised in large quantities in this cell? 1 ATP 2 glucose 3 RNA A 1, 2 and 3 B 1 and 3 only C 1 only D 2 only

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2017

Q178 · Mitochondria are thought to have evolved from prokaryotic cells that were ingested by an… 9700/12 Oct/Nov 2017

5 Mitochondria are thought to have evolved from prokaryotic cells that were ingested by an ancestral cell. Which feature have the prokaryotes lost during their evolution into mitochondria? A cell wall B circular chromosome C endoplasmic reticulum D ribosomes

1 marks

Answer: A

This question in 9700/12 Oct/Nov 2017

Q179 · Which statement is correct? 9700/12 Oct/Nov 2017

6 Which statement is correct? A A virus is composed of a protein coat which may surround RNA or DNA. B Eukaryotic plant cell walls contain peptidoglycans in addition to cellulose. C Plasmodesmata and centrioles are found in all plant cells. D Prokaryotic cells contain 80S ribosomes which they use to manufacture proteins.

1 marks

Answer: A

This question in 9700/12 Oct/Nov 2017

Q180 · A cell was supplied with cytosine labelled with radioactive carbon 9700/13 Oct/Nov 2017

3 A cell was supplied with cytosine labelled with radioactive carbon. In which cell structure would radioactivity be detected first? A endoplasmic reticulum B Golgi body C nucleus D ribosome

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2017

Q181 · The diagram shows some similarities between chloroplasts, mitochondria and typical… 9700/13 Oct/Nov 2017

4 The diagram shows some similarities between chloroplasts, mitochondria and typical prokaryotes. 1 2 3 4 5 Which row is correct? 1 2 3 4 5 A chloroplasts circular DNA mitochondria 80S ribosomes prokaryotes B chloroplasts 80S ribosomes mitochondria circular DNA prokaryotes C prokaryotes circular DNA mitochondria circular DNA chloroplasts D prokaryotes 70S ribosomes chloroplasts 80S ribosomes mitochondria

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2017

Q182 · Which statement supports the fact that mature plant cells can carry out the same role as… 9700/13 Oct/Nov 2017

5 Which statement supports the fact that mature plant cells can carry out the same role as lysosomes? A A range of hydrolytic enzymes can be found within mature plant vacuoles. B Glycogen, found within vesicles, can be hydrolysed to glucose molecules. C Single membrane-bound vesicles are formed from plant Golgi bodies. D Vesicles, formed from smooth endoplasmic reticulum, contain enzymes.

1 marks

Answer: A

This question in 9700/13 Oct/Nov 2017

Q183 · Which row correctly matches each cell structure with its function? 9700/12 Feb/March 2018

4 Which row correctly matches each cell structure with its function? microtubules rough endoplasmic reticulum A allow vesicles to move within the cell synthesises amino acids B form cilia and centrioles produces ribosomes C form the spindle during prophase transports proteins D move chromosomes during anaphase makes triglycerides and phospholipids

1 marks

Answer: C

This question in 9700/12 Feb/March 2018

Q184 · Which animal cells would have the most extensive Golgi bodies? 9700/12 Feb/March 2018

5 Which animal cells would have the most extensive Golgi bodies? A ciliated epithelial cells B goblet cells C red blood cells D smooth muscle cells

1 marks

Answer: B

This question in 9700/12 Feb/March 2018

Q185 · Lysosomes contain many different hydrolytic enzymes that may act within cells… 9700/12 Feb/March 2018

13 Lysosomes contain many different hydrolytic enzymes that may act within cells (intracellular enzymes) or outside cells (extracellular enzymes). Which process must occur in order for lysosomal enzymes to act outside the cell? A active transport B endocytosis C exocytosis D phagocytosis

1 marks

Answer: C

This question in 9700/12 Feb/March 2018

Q186 · A scientist carried out an experiment to separate cell structures in animal cells 9700/11 May/June 2018

4 A scientist carried out an experiment to separate cell structures in animal cells. The cells were broken open to release the cell structures. This extract was filtered into a centrifuge tube and then spun in a centrifuge. The heaviest cell structure sank to the bottom forming pellet 1, as shown in the diagram. liquid above pellet pellet 1 The liquid above pellet 1 was poured into a clean centrifuge tube and spun in the centrifuge at a higher speed to separate the next heaviest cell structure. This cell structure sank to the bottom, forming pellet 2. This procedure was repeated twice more to obtain pellet 3 and pellet 4, each containing a single type of cell structure. Which row shows the order in which the cell structures were collected? pellet 1 pellet 2 pellet 3 pellet 4 A nucleus lysosomes mitochondria ribosomes B nucleus mitochondria lysosomes ribosomes C ribosomes lysosomes mitochondria nucleus D ribosomes mitochondria lysosomes nucleus

1 marks

Answer: B

This question in 9700/11 May/June 2018

Q187 · Radioactively-labelled nucleotides are introduced into a cell 9700/11 May/June 2018

5 Radioactively-labelled nucleotides are introduced into a cell. 1 2 3 4 In which cell structures will the radioactivity first become concentrated? A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4

1 marks

Answer: C

This question in 9700/11 May/June 2018

Q188 · Some features of cells are listed 9700/12 May/June 2018

1 Some features of cells are listed. 1 cell wall 2 cell surface membrane 3 ribosomes Which features can be found in plant cells and in prokaryotic cells? A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: A

This question in 9700/12 May/June 2018

Q189 · Which type of cell contains the highest proportion of cell structures bound by a single… 9700/12 May/June 2018

3 Which type of cell contains the highest proportion of cell structures bound by a single membrane? A ciliated epithelial cell B goblet cell C red blood cell D smooth muscle cell

1 marks

Answer: B

This question in 9700/12 May/June 2018

Q190 · The table shows a variety of structures which may be found in cells 9700/12 May/June 2018

4 The table shows a variety of structures which may be found in cells. Which row shows structures that could be found in the root cells of a plant? glycogen plasmodesmata granules Golgi body | mitochondria Jv x x x v JV Jv J Jv x v JV key v¥ = present X = absent

1 marks

Answer: B

This question in 9700/12 May/June 2018

Q191 · Which of these cell structures are present in Plasmodium? 9700/12 May/June 2018

5 Which of these cell structures are present in Plasmodium? Golgi ribosomes body B A C D mitochondria

1 marks

Answer: A

This question in 9700/12 May/June 2018

Q192 · The diagram shows functions of four cell structures, W, X, Y and Z 9700/13 May/June 2018

2 The diagram shows functions of four cell structures, W, X, Y and Z. W makes glycolipid Z transports X makes function protein protein Y makes lipid Which row correctly matches the cell structure with the letter representing a function? rough smooth Golgi body ribosome endoplasmic endoplasmic reticulum reticulum A W X Z Y B X Z Y W C Y W X Z D Z Y W X

1 marks

Answer: A

This question in 9700/13 May/June 2018

Q193 · Which cell structures produce ATP? 9700/13 May/June 2018

3 Which cell structures produce ATP? 1 chloroplasts 2 mitochondria 3 nucleus A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: B

This question in 9700/13 May/June 2018

Q194 · When mucus is secreted from a goblet cell these events take place 9700/13 May/June 2018

4 When mucus is secreted from a goblet cell these events take place. 1 addition of carbohydrate to protein 2 fusion of the vesicle with the cell surface membrane 3 secretion of a glycoprotein 4 separation of a vesicle from the Golgi body What is the sequence in which these events take place? A 1 → 4 → 2 → 3 B 1 → 4 → 3 → 2 C 4 → 1 → 2 → 3 D 4 → 1 → 3 → 2

1 marks

Answer: A

This question in 9700/13 May/June 2018

Q195 · Which row could be correct for a virus? 9700/13 May/June 2018

5 Which row could be correct for a virus? carbohydrate DNA phospholipid lipid protein RNA A J J Jv J Jv J B v x Jv x x v Cc x J x x x J D x Jv x x v x key v = present X =not present

1 marks

Answer: D

This question in 9700/13 May/June 2018

Q196 · Which size range would include most prokaryotic cells? 9700/13 May/June 2018

6 Which size range would include most prokaryotic cells? A B C D 1 nm 100 nm 1 µm 100 µm 1 mm

1 marks

Answer: B

This question in 9700/13 May/June 2018

Q197 · A student made notes describing photomicrographs of four cells 9700/11 Oct/Nov 2018

1 A student made notes describing photomicrographs of four cells. cell 1 Grey cytoplasm at edge of cell contains many black lines and spots. Large white area in centre of cell. cell 2 Grey cytoplasm contains many black lines and spots which fill the entire cell. cell 3 Pale blue cytoplasm surrounds a single dark blue spot. cell 4 Many green structures are enclosed within a rectangular shape with visible boundaries. Which table identifies the type of cell and the type of microscope used to take each photograph? A B animal cell plant cell animal cell plant cell electron electron 1 2 1 2 microscope microscope light light 3 4 4 3 microscope microscope C D animal cell plant cell animal cell plant cell electron electron 2 1 2 1 microscope microscope light light 3 4 4 3 microscope microscope

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2018

Q198 · Which cell structures may contain cisternae? 9700/11 Oct/Nov 2018

3. Which cell structures may contain cisternae? endoplasmic chloroplast reticulum Golgi body mitochondrion A Jv Jv Jv x B J x x J Cc x J Jv x D x Jv x Jv v= may contain cisternae X = does not contain cisternae

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2018

Q199 · Which row correctly describes the function of the cell structures? 9700/11 Oct/Nov 2018

4 Which row correctly describes the function of the cell structures? smooth lysosomes mitochondria endoplasmic Golgi body reticulum A digestion of abundant in sites processing a stack of unwanted of active transport of proteins flattened sacs structures B digestion of ATP synthesis lipid production glycoprotein unwanted production structures C spherical sacs abundant in sites lipid production glycoprotein containing of active transport production hydrolytic enzymes D spherical sacs ATP synthesis glycoprotein lipid production containing production hydrolytic enzymes

1 marks

Answer: B

This question in 9700/11 Oct/Nov 2018

Q200 · The diagram shows the relationship between various cells and their components 9700/11 Oct/Nov 2018

5 The diagram shows the relationship between various cells and their components. 1 2 3 4 5 Which row is correct? 1 2 3 4 5 A 80S ribosome eukaryotic cell mitochondrion 70S ribosome prokaryotic cell B chloroplast plant cell cell wall prokaryotic cell 80S ribosome C circular DNA nucleus eukaryotic cell mitochondrion 70S ribosome D prokaryotic cell circular DNA chloroplast membrane 70S ribosome bound

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2018

Q201 · Which comparison of bacteria cell walls and plant cell walls is correct? 9700/11 Oct/Nov 2018

6 Which comparison of bacteria cell walls and plant cell walls is correct? bacteria cell wall plant cell wall A made of a polymer of α-glucose made of cellulose B made of a polymer of β-glucose made of a polymer of amino sugars C made of a polymer of amino sugars made of a polymer of α-glucose D made of peptidoglycan made of a polymer of β-glucose

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2018

Q202 · What is the diameter of a typical prokaryote, such as Streptococcus? 9700/12 Oct/Nov 2018

1 What is the diameter of a typical prokaryote, such as Streptococcus? A 7.5 × 101 nm B 7.5 × 102 nm C 7.5 × 100 µm D 7.5 × 101 µm

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2018

Q203 · Which structures are present in a Vibrio cholerae cell? 9700/12 Oct/Nov 2018

3 Which structures are present in a Vibrio cholerae cell? circular DNA A D B 80S mitochondria C ribosomes

1 marks

Answer: A

This question in 9700/12 Oct/Nov 2018

Q204 · Which processes occur in eukaryotes and prokaryotes? 9700/12 Oct/Nov 2018

6 Which processes occur in eukaryotes and prokaryotes? 1 hydrolysis 2 mitosis 3 transcription 4 translation A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: C

This question in 9700/12 Oct/Nov 2018

Q205 · The diagram is a drawing from an electron micrograph of a typical animal cell 9700/13 Oct/Nov 2018

4 The diagram is a drawing from an electron micrograph of a typical animal cell. X What is the function of the membrane system labelled X? A lipid synthesis only B protein synthesis and transport C protein synthesis only D protein transport only

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2018

Q206 · The diagram is a drawing from an electron micrograph of a typical animal cell 9700/13 Oct/Nov 2018

5 The diagram is a drawing from an electron micrograph of a typical animal cell. 1 2 3 Where would nucleic acid be found? A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: A

This question in 9700/13 Oct/Nov 2018

Q207 · The diagram shows some similarities between chloroplasts, mitochondria and typical… 9700/13 Oct/Nov 2018

6 The diagram shows some similarities between chloroplasts, mitochondria and typical prokaryotes. 1 2 3 4 5 Which row is correct? 1 2 3 4 5 A chloroplasts circular DNA mitochondria linear DNA prokaryotes B mitochondria 70S ribosomes chloroplasts linear DNA prokaryotes C mitochondria linear DNA chloroplasts 70S ribosomes prokaryotes D prokaryotes 70S ribosomes mitochondria 70S ribosomes chloroplasts

1 marks

Answer: D

This question in 9700/13 Oct/Nov 2018

Q208 · Which structures are found in both chloroplasts and mitochondria? 9700/12 Feb/March 2019

4 Which structures are found in both chloroplasts and mitochondria? 1 70S ribosomes 2 80S ribosomes 3 circular DNA A 1 and 3 B 2 and 3 C 1 only D 3 only

1 marks

Answer: A

This question in 9700/12 Feb/March 2019

Q209 · Radioactively labelled amino acids are introduced into a cell that is actively secreting… 9700/12 Feb/March 2019

5 Radioactively labelled amino acids are introduced into a cell that is actively secreting an enzyme. In which cell structure will the radioactivity first become concentrated? A B C D

1 marks

Answer: A

This question in 9700/12 Feb/March 2019

Q210 · Which features of cilia and root hairs are correct? 9700/11 May/June 2019

2 Which features of cilia and root hairs are correct? cannot be more than one increase cell resolved with contain present on a surface area the light vacuoles cell microscope A cilia cilia root hairs root hairs B cilia root hairs cilia cilia C root hairs cilia root hairs cilia D root hairs root hairs cilia root hairs

1 marks

Answer: C

This question in 9700/11 May/June 2019

Q211 · Which are functions of microtubules? 9700/11 May/June 2019

3 Which are functions of microtubules? 1 allowing movement of cilia in a bronchus 2 attachment of centromeres during metaphase 3 moving secretory vesicles around a cell A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: A

This question in 9700/11 May/June 2019

Q212 · Some cell structures are listed 9700/11 May/June 2019

4 Some cell structures are listed. 1 mitochondria 2 nucleus 3 chloroplasts 4 ribosomes What is the correct order of these cell structures when listed from largest to smallest? A 1, 2, 3, 4 B 2, 3, 1, 4 C 2, 4, 1, 3 D 3, 4, 2, 1

1 marks

Answer: B

This question in 9700/11 May/June 2019

Q213 · Which cell structures have ribosomal RNA (rRNA)? 9700/11 May/June 2019

5 Which cell structures have ribosomal RNA (rRNA)? 1 chloroplast 2 mitochondrion 3 nucleus 4 rough endoplasmic reticulum A 1, 2, 3 and 4 B 1, 2 and 3 only C 1, 2 and 4 only D 2, 3 and 4 only

1 marks

Answer: A

This question in 9700/11 May/June 2019

Q214 · A cell structure in the macrophage destroys bacteria 9700/11 May/June 2019

6 A cell structure in the macrophage destroys bacteria. Some bacteria stop this cell structure from functioning. Which cell structure in the macrophage is stopped from functioning by the bacteria? A Golgi body B lysosome C ribosome D vesicle

1 marks

Answer: B

This question in 9700/11 May/June 2019

Q215 · Two different types of cell, P and Q, were broken up using ultrasound and their contents… 9700/12 May/June 2019

3 Two different types of cell, P and Q, were broken up using ultrasound and their contents analysed. Both types of cell contained small circular DNA. The circular DNA from P all carried the same base sequence, but those from Q were of two types, with different base sequences. What may be concluded about the identity of cell types P and Q? P Q A heart muscle fibres root cortical cells B lymphocytes mature red blood cells contaminated by bacteria C mature red blood cells phloem sieve tube element D root cortical cells leaf mesophyll cells

1 marks

Answer: D

This question in 9700/12 May/June 2019

Q216 · Which features shown in the diagram can be present in viruses? 9700/12 May/June 2019

4 Which features shown in the diagram can be present in viruses? 4 1 RNA DNA feature 3 2 70S protein coat ribosomes A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: B

This question in 9700/12 May/June 2019

Q217 · The diagram shows a typical animal cell as seen using an electron microscope 9700/13 May/June 2019

3 The diagram shows a typical animal cell as seen using an electron microscope. 1 5 2 4 3 Which of the numbered structures are needed for proteins to be secreted at the cell surface membrane? A 2, 3, 4 and 5 B 1, 2 and 4 C 1 and 3 D 5 only

1 marks

Answer: C

This question in 9700/13 May/June 2019

Q218 · Lysosomes vary in shape and size, making them difficult to identify 9700/13 May/June 2019

4 Lysosomes vary in shape and size, making them difficult to identify. What describes a lysosome? A a vesicle containing enzymes, enclosed by a double membrane, that is budded off the endoplasmic reticulum B a vesicle containing hydrolytic enzymes and surrounded by a single membrane, found only in phagocytes C a vesicle enclosed by a single membrane, containing several different hydrolytic enzymes that may act inside or outside the cell D a vesicle surrounded by a double membrane, containing enzymes which can hydrolyse damaged organelles in a cell

1 marks

Answer: C

This question in 9700/13 May/June 2019

Q219 · A single-celled organism lives inside the body of a fish 9700/13 May/June 2019

6 A single-celled organism lives inside the body of a fish. This single-celled organism is rod-shaped, 700 µm long, enclosed in a cell wall and has cytoplasm containing thousands of copies of small, circular DNA. Which statement about this single-celled organism is correct? A It is a eukaryote, because it can be seen without using a microscope. B It is a eukaryote, because it is too large to be a prokaryote. C It is a plant, because it is enclosed in a cell wall. D It is a prokaryote, because it has small, circular DNA in its cytoplasm.

1 marks

Answer: D

This question in 9700/13 May/June 2019

Q220 · A group of students were asked to look at the photomicrograph of a cross-section of… 9700/13 May/June 2019

29 A group of students were asked to look at the photomicrograph of a cross-section of unfamiliar material and make observations. X The students described X as: 1 circular 2 a hollow tube 3 a spherical structure. Which descriptions are correct? A 1, 2 and 3 B 1 and 2 only C 1 only D 3 only

1 marks

Answer: C

This question in 9700/13 May/June 2019

Q221 · Which cell structure contains cytoplasm? 9700/11 Oct/Nov 2019

1 Which cell structure contains cytoplasm? A chloroplasts B mitochondria C plasmodesmata D smooth endoplasmic reticulum

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2019

Q222 · Some cell structures are listed in a particular order 9700/11 Oct/Nov 2019

2 Some cell structures are listed in a particular order. 1 nucleus 2 ribosome 3 Golgi body 4 vesicle What determines the order in which these cell structures are listed? A sequence used in synthesis of a lipid B sequence used in synthesis of an antibody C size from largest to smallest D size from smallest to largest

1 marks

Answer: B

This question in 9700/11 Oct/Nov 2019

Q223 · Four students were asked to match the function with the appearance of some cell… 9700/11 Oct/Nov 2019

4 Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by a number. 1 mRNA passes through to the ribosome 2 synthesis of polypeptides 3 packaging of hydrolytic enzymes that will remain in the cell The appearances were listed by a letter. V membranes which surround an enclosed inner cavity W non-membrane bound, spherical structures X a double membrane interspersed with pores Y non-membrane bound, cylindrical structures Z membrane-bound sacs, arranged as a flattened stack Which student correctly matched the numbered functions with the appearance of the cell structure? 1 2 3 A V X Y B V Z Z C X W Z D X Z W

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2019

Q224 · The antibiotic chloramphenicol inhibits protein synthesis in mitochondria and in some… 9700/11 Oct/Nov 2019

5 The antibiotic chloramphenicol inhibits protein synthesis in mitochondria and in some prokaryotes. Chloramphenicol does not inhibit protein synthesis in the cytoplasm of eukaryotic cells. What would be the effect on the cells of a person being treated with chloramphenicol? rate of ATP production transcription of nuclear DNA A decreases decreases B decreases no effect C increases decreases D no effect no effect

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2019

Q225 · The diameter of living cells varies considerably 9700/12 Oct/Nov 2019

2 The diameter of living cells varies considerably. The diameter of a typical eukaryotic cell is 1.5 × 101 µm. The diameter of a typical prokaryotic cell is 7.5 × 102 nm. Using these measurements, what is the maximum number of each cell type which could fit along a line 1 cm long? number of white number of blood cells Streptococcus cells A 6.7 × 104 1.3 × 102 B 6.7 × 103 1.3 × 105 C 6.7 × 102 1.3 × 104 D 6.7 × 101 1.3 × 103

1 marks

Answer: C

This question in 9700/12 Oct/Nov 2019

Q226 · Which structures are found in animal cells and in plant cells? 9700/12 Oct/Nov 2019

3 Which structures are found in animal cells and in plant cells? 1 centriole 2 lysosome 3 nucleolus 4 vacuole A 1 and 3 only B 2 and 4 only C 2, 3 and 4 only D 1, 2, 3 and 4

1 marks

Answer: C

This question in 9700/12 Oct/Nov 2019

Q227 · Which features shown in the diagram can be present in eukaryotes? 9700/12 Oct/Nov 2019

4 Which features shown in the diagram can be present in eukaryotes? 4 peptidoglycan 1 cell wall DNA feature 3 2 70S RNA ribosomes A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: A

This question in 9700/12 Oct/Nov 2019

Q228 · Four students were asked to match the function with the appearance of some cell… 9700/12 Oct/Nov 2019

5 Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by a number. 1 organises microtubules to produce the spindle during cell division 2 synthesis of polypeptides 3 synthesis of lipids The appearances were listed by a letter. V membranes which surround an enclosed inner cavity W non-membrane bound, spherical structures X a double membrane interspersed with pores Y non-membrane bound, cylindrical structures Z membrane-bound sacs, arranged as a flattened stack Which student correctly matched the numbered functions with the appearance of the cell structure? 1 2 3 A W X Z B W Z V C Y W V D Y Z W

1 marks

Answer: C

This question in 9700/12 Oct/Nov 2019

Q229 · Different antibiotics function in different ways 9700/12 Oct/Nov 2019

37 Different antibiotics function in different ways. It is important that the antibiotic kills the bacteria, but does not harm the infected human. The antibiotic tetracycline has been found to affect the way in which human mitochondria function. Which statements could explain why human mitochondria function is affected by tetracycline? A The antibiotic prevents the synthesis of peptidoglycan cell walls. B The antibiotic prevents synthesis of linear DNA. C The antibiotic prevents translation of circular DNA. D The antibiotic prevents translation by binding to 70S ribosomes.

1 marks

Answer: D

This question in 9700/12 Oct/Nov 2019

Q230 · Which cell structures contain 70S ribosomes? 9700/13 Oct/Nov 2019

3 Which cell structures contain 70S ribosomes? 1 chloroplasts 2 mitochondria 3 nucleus 4 cytoplasm A 1 and 2 only B 1 only C 2, 3 and 4 D 2 and 4 only

1 marks

Answer: A

This question in 9700/13 Oct/Nov 2019

Q231 · The electron micrograph shows part of a plant cell 9700/13 Oct/Nov 2019

4 The electron micrograph shows part of a plant cell. P Q R S 5 μm Which combination correctly identifies the labelled cell structures? P Q R S A cell surface membrane cytoplasm mitochondrion nucleus B cell surface membrane vacuole chloroplast nucleus C cell wall cytoplasm mitochondrion nucleolus D cell wall vacuole chloroplast nucleolus

1 marks

Answer: D

This question in 9700/13 Oct/Nov 2019

Q232 · Four students were asked to match the function with the appearance of some cell… 9700/13 Oct/Nov 2019

5 Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by a number. 1 mRNA passes through to the ribosome 2 organises microtubules to produce the spindle during cell division 3 packaging of hydrolytic enzymes that will remain in the cell The appearances were listed by a letter. V membranes which surround an enclosed inner cavity W non-membrane bound, spherical structures X a double membrane interspersed with pores Y non-membrane bound, cylindrical structures Z membrane-bound sacs, arranged as a flattened stack Which student correctly matched the numbered function with the appearance of the cell structure? 1 2 3 A V W Y B V Y Z C X W Y D X Y Z

1 marks

Answer: D

This question in 9700/13 Oct/Nov 2019

Q233 · Which cell structures can form vesicles? 9700/12 Feb/March 2020

2 Which cell structures can form vesicles? cell structure cell surface membrane endoplasmic reticulum Golgi body key / = can form vesicles X = cannot form vesicles

1 marks

Answer: A

This question in 9700/12 Feb/March 2020

Q234 · The diagram shows three circles, 1, 3 and 5, representing chloroplasts, mitochondria and… 9700/12 Feb/March 2020

3 The diagram shows three circles, 1, 3 and 5, representing chloroplasts, mitochondria and typical prokaryotes. circle 3 circle 1 circle 5 2 4 Which row correctly identifies the three circles and some of the structures that are shared between them? circle 1 2 circle 3 4 circle 5 A chloroplasts circular DNA mitochondria 80S ribosomes prokaryotes B chloroplasts 80S ribosomes mitochondria circular DNA prokaryotes C prokaryotes circular DNA mitochondria circular DNA chloroplasts D prokaryotes 70S ribosomes chloroplasts 80S ribosomes mitochondria

1 marks

Answer: C

This question in 9700/12 Feb/March 2020

Q235 · Which cell structures contain RNA? 9700/12 Feb/March 2020

4 Which cell structures contain RNA? 1 centrioles 2 mitochondria 3 nucleus 4 ribosomes A 1, 2, 3 and 4 B 1 and 2 only C 2, 3 and 4 only D 3 and 4 only

1 marks

Answer: C

This question in 9700/12 Feb/March 2020

Q236 · It is possible for a bacterium to synthesise a eukaryotic protein 9700/12 Feb/March 2020

5 It is possible for a bacterium to synthesise a eukaryotic protein. This involves introducing a eukaryotic gene into the bacterial DNA. The eukaryotic gene is then translated by the bacterium. What explains why a bacterial cell can produce a eukaryotic protein but cannot produce a eukaryotic glycoprotein? A Bacteria do not have rough endoplasmic reticulum. B Bacteria do not have a nuclear envelope. C Bacteria do not have mitochondria. D Bacteria do not have Golgi bodies.

1 marks

Answer: D

This question in 9700/12 Feb/March 2020

Q237 · Which structures are found in typical prokaryotic cells and also in typical plant cells? 9700/12 Feb/March 2020

6 Which structures are found in typical prokaryotic cells and also in typical plant cells? A cell walls B histones C telomeres D tonoplasts

1 marks

Answer: A

This question in 9700/12 Feb/March 2020

Q238 · The photomicrograph shows the ultrastructure of part of a cell 9700/11 May/June 2020

1 The photomicrograph shows the ultrastructure of part of a cell. Which statement about the type of cell shown in the photomicrograph is correct? A It is a plant cell because it has both chloroplasts and a nucleus. B It is a plant cell because it has chloroplasts. C It is an animal cell because it has a cell membrane. D It is an animal cell because it has mitochondria.

1 marks

Answer: B

This question in 9700/11 May/June 2020

Q239 · Which structures are found in typical eukaryotic cells? 9700/11 May/June 2020

2 Which structures are found in typical eukaryotic cells? 1 70S ribosomes 2 80S ribosomes 3 linear DNA (chromosomes) 4 circular DNA A 1, 2, 3 and 4 B 1, 2 and 3 only C 1 and 4 only D 2 and 3 only

1 marks

Answer: A

This question in 9700/11 May/June 2020

Q240 · The table shows a comparison between two features of a typical eukaryotic cell and a… 9700/11 May/June 2020

5 The table shows a comparison between two features of a typical eukaryotic cell and a typical prokaryotic cell. Which row shows the correct comparison between these cells? presence of centromeres presence of telomeres eukaryotic | prokaryotic | eukaryotic | prokaryotic cell cell cell cell v v x x 00 WwW > v x v x x v x v x x v v key v¥ = present X = not present

1 marks

Answer: B

This question in 9700/11 May/June 2020

Q241 · Which row correctly shows a feature of a cell structure? 9700/12 May/June 2020

3 Which row correctly shows a feature of a cell structure? site of protein makes lysosomes synthesis A smooth endoplasmic rough endoplasmic reticulum reticulum B ribosomes Golgi body C rough endoplasmic ribosomes reticulum Golgi body smooth endoplasmic D reticulum

1 marks

Answer: B

This question in 9700/12 May/June 2020

Q242 · Four students were asked to match the function with the appearance of some cell… 9700/12 May/June 2020

4 Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by a number. 1 organises microtubules to produce the spindle during cell division 2 synthesis of polypeptides 3 packaging of hydrolytic enzymes that will remain in the cell The appearances were listed by a letter. V membranes which surround an enclosed inner cavity W non-membrane bound, spherical structures X a double membrane with many pores Y non-membrane bound, cylindrical structures Z membrane-bound sacs, arranged as a flattened stack Which student correctly matched the numbered function with the appearance of the cell structure? 1 2 3 A W X Y B W Z W C Y W Z D Y Z Z

1 marks

Answer: C

This question in 9700/12 May/June 2020

Q243 · The features of some cells and cell structures that make ATP are listed 9700/12 May/June 2020

5 The features of some cells and cell structures that make ATP are listed. 1 has outer boundary membrane and folded inner membrane 2 has peptidoglycan cell wall outside an outer boundary membrane 3 has a double boundary membrane and stacks of inner membranes Which row identifies these components? 1 2 3 A bacterium chloroplast mitochondrion B chloroplast bacterium mitochondrion C chloroplast mitochondrion bacterium D mitochondrion bacterium chloroplast

1 marks

Answer: D

This question in 9700/12 May/June 2020

Q244 · Mitochondria are thought to have evolved from prokaryotic cells that were ingested by an… 9700/12 May/June 2020

6 Mitochondria are thought to have evolved from prokaryotic cells that were ingested by an ancestral cell. Which feature have these prokaryotes lost during their evolution into mitochondria? A cell wall B circular chromosome C internal membranes D ribosomes

1 marks

Answer: A

This question in 9700/12 May/June 2020

Q245 · The electron micrograph shows part of a eukaryotic cell 9700/13 May/June 2020

2 The electron micrograph shows part of a eukaryotic cell. Which cell structure is a site of protein synthesis? A B C D

1 marks

Answer: B

This question in 9700/13 May/June 2020

Q246 · Some stains can be used to identify cell structures in living cells 9700/13 May/June 2020

3 Some stains can be used to identify cell structures in living cells. A dilute solution of one stain causes the whole cell to appear blue. The blue colour rapidly disappears in most cell structures. Those cell structures that release energy stay blue. Which type of cell structure is likely to stay blue? A endoplasmic reticulum B Golgi body C lysosome D mitochondrion

1 marks

Answer: D

This question in 9700/13 May/June 2020

Q247 · A molecule of carbon dioxide is in the centre of a mitochondrion 9700/13 May/June 2020

4 A molecule of carbon dioxide is in the centre of a mitochondrion. Assuming there are no other cell structures in its path, how many phospholipid layers will the carbon dioxide molecule have to pass through in order to leave the cell? A 2 B 3 C 6 D 8

1 marks

Answer: C

This question in 9700/13 May/June 2020

Q248 · Which row identifies the type of ribosome found in each of the different structures? 9700/13 May/June 2020

5 Which row identifies the type of ribosome found in each of the different structures? cytoplasm of chloroplast prokaryotic cell mitochondrion eukaryotic cell A 70S 70S 80S 70S B 70S 80S 70S 70S C 80S 70S 80S 80S D 80S 80S 70S 80S

1 marks

Answer: B

This question in 9700/13 May/June 2020

Q249 · Which row shows the correct order of size of these cell structures? 9700/11 Oct/Nov 2020

1 Which row shows the correct order of size of these cell structures? 1 width of a mitochondrion 2 width of a ribosome 3 width of a cell surface membrane 4 width of a chloroplast largest  smallest A 1 4 2 3 B 1 4 3 2 C 4 1 2 3 D 4 2 1 3

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2020

Q250 · Insulin is a hormone synthesised from two polypeptide chains inside cells of the pancreas 9700/11 Oct/Nov 2020

3 Insulin is a hormone synthesised from two polypeptide chains inside cells of the pancreas. Which row shows the cell structures that are used in producing insulin and releasing it from the cells? rough Golgi body lysosome endoplasmic reticulum A v v x B v v v Cc v x v D x v v key JY = used X = not used

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2020

Q251 · The electron micrograph shows a cell structure in a eukaryotic cell 9700/11 Oct/Nov 2020

4 The electron micrograph shows a cell structure in a eukaryotic cell. Which statements about this cell structure are correct? 1 ATP is synthesised in this cell structure. 2 The cell structure is made of protein molecules. 3 The cell structure replicates during interphase of the cell cycle. A 1 and 2 B 1 and 3 C 2 and 3 D 3 only

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2020

Q252 · Four students were asked to match the function with the appearance of some cell… 9700/11 Oct/Nov 2020

5 Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by number. 1 synthesis of polypeptides 2 synthesis of lipids 3 packaging of hydrolytic enzymes that will remain in the cell The appearances were listed by letter. V membranes which surround an enclosed inner cavity W non-membrane-bound, spherical structures X a double membrane interspersed with pores Y non-membrane-bound, cylindrical structures Z membrane-bound sacs, arranged as a flattened stack Which student correctly matched the numbered function with the appearance of the cell structure? 1 2 3 A W V Z B W Z Y C Z W Z D Z V W

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2020

Q253 · The DNA of typical prokaryotes is naked and circular 9700/11 Oct/Nov 2020

6 The DNA of typical prokaryotes is naked and circular. Which statement describes how the DNA of eukaryotes differs from the DNA of typical prokaryotes? A Only DNA of eukaryotes has a nuclear envelope around it and is a double helix. B Only DNA of eukaryotes has a nuclear envelope around it and is circular. C Only DNA of eukaryotes has proteins attached to it and is a double helix. D Only DNA of eukaryotes has proteins attached to it and is linear.

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2020

Q254 · Which part of the cell is often continuous with the rough endoplasmic reticulum? 9700/13 Oct/Nov 2020

4 Which part of the cell is often continuous with the rough endoplasmic reticulum? A cell surface membrane B Golgi body C mitochondrion D nuclear envelope

1 marks

Answer: D

This question in 9700/13 Oct/Nov 2020

Q255 · Four students were asked to match the function with the appearance of some cell… 9700/13 Oct/Nov 2020

6 Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by number. 1 mRNA passes through to the ribosome 2 organises microtubules to produce the spindle during cell division 3 synthesis of lipids The appearances were listed by letter. V membranes which surround an enclosed inner cavity W non-membrane-bound, spherical structures X a double membrane with pores Y non-membrane-bound, cylindrical structures Z membrane-bound sacs, arranged as a flattened stack Which student correctly matched the numbered functions with the appearance of the cell structure? 1 2 3 A V W Z B V Y W C X W V D X Y V

1 marks

Answer: D

This question in 9700/13 Oct/Nov 2020

Q256 · Three molecules found in prokaryotes are listed 9700/13 Oct/Nov 2020

17 Three molecules found in prokaryotes are listed. 1 phospholipid 2 protein 3 peptidoglycan Which molecules are found in prokaryotic cell surface membranes? A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2020

Q257 · What happens to the surface area to volume ratio of a cube when the length of each side… 9700/13 Oct/Nov 2020

18 What happens to the surface area to volume ratio of a cube when the length of each side is doubled? A The ratio decreases by a quarter. B The ratio decreases by half. C The ratio doubles. D The ratio increases by four times.

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2020

Q258 · Which row correctly shows the presence of a cell structure in typical plant cells and in… 9700/12 Feb/March 2021

2 Which row correctly shows the presence of a cell structure in typical plant cells and in typical prokaryotic cells? ole calls prokaryotic cells A | centrioles v x key B | 70S ribosomes Jv v ¥ = present C | lysosomes Jv v X = not present D | cellulose cell walls v v

1 marks

Answer: B

This question in 9700/12 Feb/March 2021

Q259 · Which parts of a cell contain ribosomes? 9700/12 Feb/March 2021

4 Which parts of a cell contain ribosomes? 1 chloroplast 2 mitochondrion 3 Golgi body 4 cytoplasm A 1, 2, 3 and 4 B 1, 2 and 3 only C 1, 2 and 4 only D 3 and 4 only

1 marks

Answer: C

This question in 9700/12 Feb/March 2021

Q260 · Which range of cell diameters is typical for prokaryotic cells? 9700/12 Feb/March 2021

5 Which range of cell diameters is typical for prokaryotic cells? A 1 nm to 5  102 nm B 1  103 nm to 5 m C 1  101 m to 5  102 m D 1  102 m to 5  103 m

1 marks

Answer: B

This question in 9700/12 Feb/March 2021

Q261 · Which row shows a combination of molecules that could be found together in a single… 9700/12 Feb/March 2021

6 Which row shows a combination of molecules that could be found together in a single isolated virus? carbohydrate DNA phospholipid lipid protein RNA A V J J J J J key B J x Jv x x J / = present Cc x v x x x v X = not present D x Jv x x v x

1 marks

Answer: D

This question in 9700/12 Feb/March 2021

Q262 · The electron micrograph shows a structure found in the cytoplasm of an animal cell 9700/11 May/June 2021

3 The electron micrograph shows a structure found in the cytoplasm of an animal cell. What is this cell structure? A centriole B lysosome C ribosome D vesicle

1 marks

Answer: A

This question in 9700/11 May/June 2021

Q263 · Which cell structures contain nucleic acid? 9700/11 May/June 2021

4 Which cell structures contain nucleic acid? 1 Golgi body 2 lysosome 3 mitochondria 4 ribosomes A 1, 2 and 3 B 1, 2 and 4 C 1 and 4 only D 3 and 4

1 marks

Answer: D

This question in 9700/11 May/June 2021

Q264 · Which statements about mitochondria, chloroplasts or prokaryotes are correct? 9700/11 May/June 2021

5 Which statements about mitochondria, chloroplasts or prokaryotes are correct? 1 Mitochondria and chloroplasts have a fully permeable inner membrane and a partially permeable outer membrane. 2 Prokaryotes and chloroplasts have 70S ribosomes that are the sites for translation and polypeptide synthesis. 3 Prokaryotes and mitochondria have an outer membrane and an inner, folded membrane where ATP synthesis occurs. 4 Prokaryotes and mitochondria have circular DNA where genes coding for information are located. A 1, 2 and 3 B 1, 2 and 4 C 1 and 3 only D 2 and 4 only

1 marks

Answer: D

This question in 9700/11 May/June 2021

Q265 · The very large (1000 nm) Pandora viruses found in Chile and Australia are considered to… 9700/11 May/June 2021

6 The very large (1000 nm) Pandora viruses found in Chile and Australia are considered to be viruses because they cannot replicate their own genome and cannot make proteins. They also share essential structural features with other viruses. What are the essential structural features of viruses? 1 non-cellular 2 protein coat 3 both DNA and RNA 4 either DNA or RNA A 1, 2 and 3 B 1, 2 and 4 C 1 and 3 only D 2 and 4 only

1 marks

Answer: B

This question in 9700/11 May/June 2021

Q266 · Which row describes the membranes surrounding each cell structure? 9700/12 May/June 2021

1 Which row describes the membranes surrounding each cell structure? chloroplast mitochondrion nucleus A single single double B double single single C single double single D double double double

1 marks

Answer: D

This question in 9700/12 May/June 2021

Q267 · Which sequence shows the correct order of some of the stages in the production and… 9700/12 May/June 2021

3 Which sequence shows the correct order of some of the stages in the production and secretion of an enzyme? A Golgi body  ribosome  rough endoplasmic reticulum  mRNA B mRNA  smooth endoplasmic reticulum  Golgi body  vesicle C ribosome  rough endoplasmic reticulum  vesicle  Golgi body D smooth endoplasmic reticulum  mRNA  vesicle  ribosome

1 marks

Answer: C

This question in 9700/12 May/June 2021

Q268 · Different antibiotics function in different ways 9700/12 May/June 2021

4 Different antibiotics function in different ways. Ideally, the antibiotic kills the bacteria, but does not harm the infected human. One type of antibiotic, tetracycline, can affect the way in which human mitochondria function. What explains the effect of tetracycline on human mitochondria? 1 The antibiotic prevents the synthesis of peptidoglycan cell walls. 2 The antibiotic prevents synthesis of linear DNA. 3 The antibiotic prevents translation by binding to 70S ribosomes. A 1 and 2 B 2 and 3 C 2 only D 3 only

1 marks

Answer: D

This question in 9700/12 May/June 2021

Q269 · Which set of measurements is correct? 9700/13 May/June 2021

1 Which set of measurements is correct? thickness of cell diameter of diameter of red surface membrane capillary blood cell of red blood cell A 7 m 7 m 7 nm B 7 m 7 nm 7 nm C 0.7 mm 7 m 7 nm D 0.7 mm 0.7 mm 7 m

1 marks

Answer: A

This question in 9700/13 May/June 2021

Q270 · Which cell structures contain DNA? 9700/13 May/June 2021

4 Which cell structures contain DNA? 1 mitochondria 2 chloroplasts 3 centrioles 4 nucleolus A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: B

This question in 9700/13 May/June 2021

Q271 · Four students were asked to match the function with the appearance of some cell… 9700/13 May/June 2021

5 Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by number. 1 mRNA passes through to the ribosome 2 synthesis of polypeptides 3 synthesis of lipids The appearances were listed by letter. V membranes which surround an enclosed inner cavity W non-membrane bound, spherical structures X a double membrane interspersed with pores Y non-membrane bound, cylindrical structures Z membrane-bound sacs, arranged as a flattened stack Which student correctly matched the numbered function with the appearance of the cell structure? 1 2 3 A V X Z B V Z W C X W V D X Z V

1 marks

Answer: C

This question in 9700/13 May/June 2021

Q272 · Which row is correct for structures found in eukaryotic cells? 9700/13 May/June 2021

6 Which row is correct for structures found in eukaryotic cells? circular DNA 70S ribosomes 80S ribosomes A present present present B present present absent C present absent present D absent present absent

1 marks

Answer: A

This question in 9700/13 May/June 2021

Q273 · In which cell structures does DNA transcription occur? 9700/11 Oct/Nov 2021

3 In which cell structures does DNA transcription occur? chloroplast A D mitochondrion nucleus C B

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2021

Q274 · Four students were asked to match the function with the appearance of some cell… 9700/12 Oct/Nov 2021

3 Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by number. 1 mRNA passes through to the ribosome 2 organises microtubules to produce the spindle during cell division 3 synthesis of polypeptides The appearances were listed by letter. V membranes which surround an enclosed inner cavity W non-membrane bound, spherical structures X a double membrane interspersed with pores Y non-membrane bound, cylindrical structures Z membrane-bound sacs, arranged as a flattened stack Which student correctly matched the numbered function with the appearance of the cell structure? 1 2 3 A V W X B V Y Z C X W Z D X Y W

1 marks

Answer: D

This question in 9700/12 Oct/Nov 2021

Q275 · Which cell structures are required for the formation of lysosomes and the hydrolytic… 9700/12 Oct/Nov 2021

4 Which cell structures are required for the formation of lysosomes and the hydrolytic enzymes that they contain? mitochondria B rough endoplasmic Golgi reticulum A D C body

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2021

Q276 · Which cell structures contain rRNA? 9700/12 Oct/Nov 2021

5 Which cell structures contain rRNA? 1 chloroplast 2 mitochondrion 3 nucleus 4 smooth endoplasmic reticulum A 1, 2, 3 and 4 B 1, 2 and 3 only C 1, 2 and 4 only D 3 and 4 only

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2021

Q277 · The single-celled organism Thiomargarita namibiensis measures 700 m in diameter and is… 9700/12 Oct/Nov 2021

6 The single-celled organism Thiomargarita namibiensis measures 700 m in diameter and is enclosed in a cell wall. The genetic material of T. namibiensis is located free in the cytoplasm where it occurs as thousands of copies of circular DNA. Most of the cell is taken up by a large vacuole, which stores essential chemicals for metabolism. Which statement is correct? A It must be a eukaryote because a diameter of 700 m is too large for a prokaryote. B It must be a plant because it contains a vacuole. C It must be a plant because it is enclosed in a cell wall. D It must be a prokaryote because its DNA is circular and located in the cytoplasm.

1 marks

Answer: D

This question in 9700/12 Oct/Nov 2021

Q278 · What is the length of a typical prokaryote, such as the bacterium Escherichia coli ? 9700/13 Oct/Nov 2021

3 What is the length of a typical prokaryote, such as the bacterium Escherichia coli ? A 1.5  101 nm B 1.5  102 nm C 1.5  100 m D 1.5  101 m

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2021

Q279 · Which cell structures are present in Plasmodium? 9700/13 Oct/Nov 2021

4 Which cell structures are present in Plasmodium? B Golgi ribosomes body A C D mitochondria

1 marks

Answer: A

This question in 9700/13 Oct/Nov 2021

Q280 · Which cell structures may contain nucleic acid? 9700/13 Oct/Nov 2021

5 Which cell structures may contain nucleic acid? 1 cytoplasm 2 chloroplast 3 ribosome 4 Golgi body A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: A

This question in 9700/13 Oct/Nov 2021

Q281 · Goblet cells are found in the trachea 9700/13 Oct/Nov 2021

36 Goblet cells are found in the trachea. Which cell structures would be found extensively in a goblet cell? Golgi body | mitochondria | ribosomes v v v key ¥ = found extensively 00 WwW > v v x v Xx v X = not found extensively x v v

1 marks

Answer: A

This question in 9700/13 Oct/Nov 2021

Q282 · Microvilli and root hairs are characteristic structures of some cell types 9700/12 Feb/March 2022

2 Microvilli and root hairs are characteristic structures of some cell types. Which row identifies some features of a microvillus and a root hair? more than one surrounded present on a by cell wall cell A root hair microvillus B microvillus microvillus C root hair root hair D microvillus root hair

1 marks

Answer: A

This question in 9700/12 Feb/March 2022

Q283 · Which eukaryotic cell structures all contain nucleic acids? 9700/12 Feb/March 2022

4 Which eukaryotic cell structures all contain nucleic acids? A cytoplasm, Golgi bodies, mitochondria, nuclei B centrioles, chloroplasts, mitochondria, ribosomes C centrioles, mitochondria, nuclei, ribosomes D chloroplasts, mitochondria, cytoplasm, ribosomes

1 marks

Answer: D

This question in 9700/12 Feb/March 2022

Q284 · Which statements about viruses are correct? 9700/12 Feb/March 2022

5 Which statements about viruses are correct? 1 They contain DNA or RNA. 2 They use host cells to synthesise virus proteins. 3 They can have a protective coat of peptidoglycan. A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: B

This question in 9700/12 Feb/March 2022

Q285 · What are features of prokaryote cells, chloroplasts and mitochondria? 9700/12 Feb/March 2022

6 What are features of prokaryote cells, chloroplasts and mitochondria? ribosomes smaller circular than 80S A B C DNA D surrounded by a double membrane

1 marks

Answer: B

This question in 9700/12 Feb/March 2022

Q286 · Four students were asked to match the function with the appearance of some cell… 9700/11 May/June 2022

2 Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by number. 1 mRNA passes through to the ribosome 2 produces the mitotic spindle during cell division 3 packaging of hydrolytic enzymes that will remain in the cell The appearances were listed by letter. V membranes which surround an enclosed inner cavity W non-membrane-bound, spherical structures X a double membrane interspersed with pores Y non-membrane-bound, cylindrical structures Z membrane-bound sacs, arranged as a flattened stack Which student correctly matched the numbered function with the appearance of the cell structure? 1 2 3 A V W Y B V Y Z C X W Y D X Y Z

1 marks

Answer: D

This question in 9700/11 May/June 2022

Q287 · Which size range would include most prokaryotic cells? 9700/11 May/June 2022

3 Which size range would include most prokaryotic cells? A B C D 1 nm 100 nm 1 µm 100 µm 1 mm

1 marks

Answer: B

This question in 9700/11 May/June 2022

Q288 · What is present in a typical prokaryotic cell and a typical eukaryotic cell? 9700/11 May/June 2022

4 What is present in a typical prokaryotic cell and a typical eukaryotic cell? A 70S ribosomes B centrioles C circular DNA in the cytoplasm D starch granules

1 marks

Answer: A

This question in 9700/11 May/June 2022

Q289 · Which statement about viruses is correct? 9700/11 May/June 2022

5 Which statement about viruses is correct? A They all have a capsid made of protein. B They all contain RNA. C They all have an outer envelope made of phospholipids. D They all contain 80S ribosomes.

1 marks

Answer: A

This question in 9700/11 May/June 2022

Q290 · Four students were asked to match the function with the appearance of some cell… 9700/12 May/June 2022

3 Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by number. 1 produces the mitotic spindle during cell division 2 synthesis of polypeptides 3 synthesis of lipids The appearances were listed by letter. V membranes which surround an enclosed inner cavity W non-membrane-bound, spherical structures X a double membrane interspersed with pores Y non-membrane-bound, cylindrical structures Z membrane-bound sacs, arranged as a flattened stack Which student correctly matched the numbered functions with the appearance of the cell structure? 1 2 3 A W X Z B W Z V C Y W V D Y Z W

1 marks

Answer: C

This question in 9700/12 May/June 2022

Q291 · What is found in chloroplasts and mitochondria? 9700/12 May/June 2022

4 What is found in chloroplasts and mitochondria? A 70S ribosomes only B 70S ribosomes and circular DNA C 80S ribosomes and circular DNA D circular DNA only

1 marks

Answer: B

This question in 9700/12 May/June 2022

Q292 · Which feature is correct for all known viruses? 9700/12 May/June 2022

5 Which feature is correct for all known viruses? A capsid made of lipid and protein B DNA core C outer envelope of phospholipid D non-cellular structure

1 marks

Answer: D

This question in 9700/12 May/June 2022

Q293 · Four students were asked to match the function with the appearance of some cell… 9700/13 May/June 2022

2 Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by number. 1 mRNA passes through to the ribosome 2 synthesis of polypeptides 3 packaging of hydrolytic enzymes that will remain in the cell The appearances were listed by letter. V membranes which surround an enclosed inner cavity W non-membrane-bound, spherical structures X a double membrane interspersed with pores Y non-membrane-bound, cylindrical structures Z membrane-bound sacs, arranged as a flattened stack Which student correctly matched the numbered functions with the appearance of the cell structure? 1 2 3 A V X Y B V Z Z C X W Z D X Z W

1 marks

Answer: C

This question in 9700/13 May/June 2022

Q294 · An experiment was carried out to separate the cell structures in an animal cell 9700/13 May/June 2022

3 An experiment was carried out to separate the cell structures in an animal cell. The cells were broken open. The extract was filtered and put into a centrifuge tube. This tube was then spun so that the heaviest cell structure sank to the bottom first, forming pellet 1, as shown. liquid above pellet pellet 1 The liquid above pellet 1 was poured into a clean centrifuge tube and spun again at a higher speed to separate the next heaviest cell structure. This cell structure sank to the bottom, forming pellet 2. This procedure was repeated twice to obtain pellet 3 and pellet 4, each containing a single cell structure. What is a function of the cell structure extracted in pellet 1? A digestion of old organelles B production of ATP C production of mRNA D synthesis of protein

1 marks

Answer: C

This question in 9700/13 May/June 2022

Q295 · Which row shows a comparison that is not correct between a typical prokaryotic cell and a… 9700/13 May/June 2022

5 Which row shows a comparison that is not correct between a typical prokaryotic cell and a typical eukaryotic plant cell? prokaryotic cell eukaryotic plant cell A DNA not associated DNA associated with histones with histones B no endoplasmic reticulum endoplasmic reticulum present present C peptidoglycan cell walls cellulose cell walls D all ribosomes approximately all ribosomes approximately 18 nm in diameter 22 nm in diameter

1 marks

Answer: D

This question in 9700/13 May/June 2022

Q296 · It is suggested that primitive prokaryotic cells may be ancestors of certain organelles… 9700/13 May/June 2022

6 It is suggested that primitive prokaryotic cells may be ancestors of certain organelles in eukaryotic cells. Which organelle is most similar in composition to a typical prokaryote? A Golgi bodies B lysosomes C mitochondria D nucleoli

1 marks

Answer: C

This question in 9700/13 May/June 2022

Q297 · Which row matches each organelle with its function? 9700/11 Oct/Nov 2022

2 Which row matches each organelle with its function? rough endoplasmic microtubules Golgi body centrioles reticulum A make cilia and separates some makes lysosomes assemble the spindle processes from spindle during cytoplasm nuclear division B move vesicles assembles amino contains enzymes move within the cell acids to make for destroying worn chromosomes apart proteins out parts of the cell during anaphase C move chromatids modifies proteins makes move cilia apart during which may be glycoproteins anaphase released from cell D form part of the makes triglycerides modifies proteins move individual cytoskeleton and phospholipids by adding cells carbohydrates

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2022

Q298 · Where are 80S ribosomes found? 9700/11 Oct/Nov 2022

3 Where are 80S ribosomes found? 1 chloroplasts 2 cytoplasm of eukaryotes 3 mitochondria 4 cytoplasm of prokaryotes A 1, 2 and 3 B 1 and 3 only C 2 only D 4 only

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2022

Q299 · Which feature, when present in an organism, enables it to be identified as a prokaryote? 9700/11 Oct/Nov 2022

4 Which feature, when present in an organism, enables it to be identified as a prokaryote? A cytoplasmic DNA B cell wall C nucleus D ribosomes

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2022

Q300 · What is the function of the nucleolus? 9700/11 Oct/Nov 2022

5 What is the function of the nucleolus? A the formation and breakdown of the nuclear envelope B the formation of rough endoplasmic reticulum C the synthesis of ribosomal proteins D the synthesis of rRNA

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2022

Q301 · A cuboidal epithelium cell has a length of 2 µm 9700/11 Oct/Nov 2022

15 A cuboidal epithelium cell has a length of 2 µm. The cell is an approximate cube shape. What is the most accurate estimate of the surface area : volume ratio of this cuboidal epithelium cell? A 1 : 2 B 1 : 3 C 2 : 1 D 3 : 1

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2022

Q302 · Where are cisternae found in a cell? 9700/12 Oct/Nov 2022

2 Where are cisternae found in a cell? 1 endoplasmic reticulum 2 Golgi body 3 mitochondria A 1 and 2 B 1 and 3 C 1 only D 2 and 3

1 marks

Answer: A

This question in 9700/12 Oct/Nov 2022

Q303 · Which row matches the functions to the cell structures? 9700/12 Oct/Nov 2022

3 Which row matches the functions to the cell structures? vacuole nucleolus ribosomes lysosomes A stores water, manufactures protein involved in cell sugar and messenger RNA synthesis recognition pigment B exports proteins manufactures lipid synthesis involved in cell ribosomal RNA recognition C stores water, manufactures protein contains sugar and ribosomal RNA synthesis enzymes pigment D exports proteins manufactures lipid synthesis contains messenger RNA enzymes

1 marks

Answer: C

This question in 9700/12 Oct/Nov 2022

Q304 · Which structures are found in prokaryotes and eukaryotes? 9700/12 Oct/Nov 2022

4 Which structures are found in prokaryotes and eukaryotes? A cell membrane and nucleus B cell membrane and ribosomes C nucleus and mitochondria D mitochondria and ribosomes

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2022

Q305 · Some cell structures are listed 9700/13 Oct/Nov 2022

2 Some cell structures are listed. 1 endoplasmic reticulum 2 Golgi body 3 mitochondrion 4 chloroplast Which cell structures do not contain cristae? A 1, 2, 3 and 4 B 1, 2 and 4 only C 1 and 2 only D 3 and 4 only

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2022

Q306 · Which letter represents cell structures where mRNA may be found? 9700/13 Oct/Nov 2022

3 Which letter represents cell structures where mRNA may be found? cytoplasm A C B mitochondrion nucleus D

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2022

Q307 · Which row is correct for typical prokaryotic cells and mitochondria? 9700/13 Oct/Nov 2022

4 Which row is correct for typical prokaryotic cells and mitochondria? prokaryotic feature mitochondria cells A 70S ribosomes no yes B circular DNA yes no C peptidoglycans yes no D small size, 1–5 µm long no no

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2022

Q308 · Which statement is correct? 9700/13 Oct/Nov 2022

5 Which statement is correct? A A virus is composed of a protein coat which surrounds RNA or DNA. B Suberin and cellulose are found in all plant cell walls. C Plasmodesmata and centrioles are found in all plant cells. D Prokaryotic cells contain an endoplasmic reticulum to synthesise proteins.

1 marks

Answer: A

This question in 9700/13 Oct/Nov 2022

Q309 · The diagram shows the epidermis of human skin 9700/13 Oct/Nov 2022

20 The diagram shows the epidermis of human skin. This is formed of four layers of cells. Cells in each layer have specific functions which are outlined on the diagram. As the cells are produced, they move upwards as shown by the arrow. cells in this layer are dead and eventually break away from the skin the keratinocyte cells continue to synthesise keratin and glycolipids to waterproof the skin the keratinocyte cells begin the synthesis of the protein keratin and a glycolipid that prevent water loss from the skin basal cells divide by mitosis and differentiate into the keratinocyte cells which move up into the layer above as they are produced Which row shows cells that are acting as stem cells in the skin epidermis and an organelle needed by the keratinocytes? cells that are acting organelle needed by as stem cells the keratinocytes A basal cells only centrioles B basal cells only Golgi body C basal cells and keratinocytes centrioles D basal cells and keratinocytes Golgi body

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2022

Q310 · Which statements are correct for chloroplasts and also for mitochondria? 9700/12 Feb/March 2023

3 Which statements are correct for chloroplasts and also for mitochondria? 1 They contain 80S ribosomes. 2 They can transcribe their circular DNA. 3 They can translate mRNA. 4 They are enclosed by double membranes. A 1, 2, 3 and 4 B 1 and 2 only C 2, 3 and 4 only D 3 and 4 only

1 marks

Answer: C

This question in 9700/12 Feb/March 2023

Q311 · The electron micrograph shows some cells from a root 9700/12 Feb/March 2023

4 The electron micrograph shows some cells from a root. Which cell structure is not usually found in cells from a root? A D B C

1 marks

Answer: B

This question in 9700/12 Feb/March 2023

Q312 · What is present in all viruses? 9700/12 Feb/March 2023

6 What is present in all viruses? A ribose B deoxyribose C adenine D thymine

1 marks

Answer: C

This question in 9700/12 Feb/March 2023

Q313 · What happens to the surface area to volume ratio of a cube when the length of each side… 9700/12 Feb/March 2023

18 What happens to the surface area to volume ratio of a cube when the length of each side is doubled? A The ratio decreases by four times. B The ratio halves. C The ratio doubles. D The ratio increases by four times.

1 marks

Answer: B

This question in 9700/12 Feb/March 2023

Q314 · Which cell structures can form vesicles? 9700/11 May/June 2023

2 Which cell structures can form vesicles? cell surface endoplasmic membrane reticulum Golgi body A Jv v v key B v v x / = can form vesicles Cc v x v X = cannot form vesicles D x Jv Jv

1 marks

Answer: A

This question in 9700/11 May/June 2023

Q315 · Four students were asked to match the function with the appearance of some cell… 9700/11 May/June 2023

3 Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by number. 1 synthesis of polypeptides 2 synthesis of lipids 3 packaging of hydrolytic enzymes that will remain in the cell The appearances were listed by letter. V membranes which surround an enclosed inner cavity W non-membrane-bound, spherical structures X a double membrane interspersed with pores Y non-membrane-bound, cylindrical structures Z membrane-bound sacs, arranged as a flattened stack Which student correctly matched the numbered function with the appearance of the cell structure? 1 2 3 A W V Z B W Z Y C Z W Z D Z V W

1 marks

Answer: A

This question in 9700/11 May/June 2023

Q316 · Which cells contain a tonoplast? 9700/11 May/June 2023

4 Which cells contain a tonoplast? root hair companion sieve tube element ~~ KOK endodermis Kk SK key / = contain tonoplast X = do not contain tonoplast

1 marks

Answer: D

This question in 9700/11 May/June 2023

Q317 · Which organelles found in animal or plant cells are surrounded by double membranes? 9700/11 May/June 2023

5 Which organelles found in animal or plant cells are surrounded by double membranes? A chloroplasts, mitochondria, vacuoles B chloroplasts, mitochondria, nuclei C chloroplasts, nuclei, vacuoles D mitochondria, nuclei, vacuoles

1 marks

Answer: B

This question in 9700/11 May/June 2023

Q318 · Some scientists think that mitochondria evolved from bacteria that entered the cytoplasm… 9700/11 May/June 2023

6 Some scientists think that mitochondria evolved from bacteria that entered the cytoplasm of a different cell and were able to survive there. Which structural features of mitochondria support this hypothesis? folded internal membrane circular DNA | 70S ribosomes A J J J B J J x Cc Jv x Jv D x J J key / = supports X = does not support

1 marks

Answer: D

This question in 9700/11 May/June 2023

Q319 · Six organelles found in eukaryotic cells are shown 9700/12 May/June 2023

2 Six organelles found in eukaryotic cells are shown. 1 2 3 NOT TO SCALE 4 5 6 Which organelles are involved in the synthesis and secretion of a glycoprotein? A 1, 2, 3 and 4 B 1, 2, 4 and 6 C 2, 3 and 5 D 3, 4, 5 and 6

1 marks

Answer: B

This question in 9700/12 May/June 2023

Q320 · Which cell structures can have mRNA inside them? 9700/12 May/June 2023

3 Which cell structures can have mRNA inside them? 1 chloroplast 2 mitochondrion 3 nucleus 4 rough endoplasmic reticulum A 1, 2, 3 and 4 B 1, 2 and 3 only C 2, 3 and 4 only D 3 and 4 only

1 marks

Answer: B

This question in 9700/12 May/June 2023

Q321 · A scientist carried out an experiment to separate the organelles in an animal cell by mass 9700/12 May/June 2023

4 A scientist carried out an experiment to separate the organelles in an animal cell by mass. The scientist mixed the cells with a buffer solution which had the same water potential as the cells. The cells were broken open with a blender to release the organelles. The extracted mixture was filtered and then spun in a centrifuge at a high speed to separate the heaviest type of organelle. These sank to the bottom, forming solid pellet 1. liquid above pellet solid pellet The liquid above pellet 1 was poured into a clean centrifuge tube and spun in the centrifuge at a higher speed to separate the next heaviest type of organelle. These organelles sank to the bottom, forming solid pellet 2. This procedure was repeated twice more to obtain pellet 3 and pellet 4, each containing a single type of organelle. What is the main function of the type of organelle extracted in pellet 2? A digestion of old organelles B production of ATP C production of mRNA D synthesis of protein

1 marks

Answer: B

This question in 9700/12 May/June 2023

Q322 · Which structures are found in palisade mesophyll cells and photosynthetic prokaryotes? 9700/12 May/June 2023

5 Which structures are found in palisade mesophyll cells and photosynthetic prokaryotes? 1 cell surface membrane 2 cellulose wall 3 ribosomes 4 chloroplasts A 1, 2, 3 and 4 B 1, 2 and 3 only C 1 and 3 only D 2 and 4 only

1 marks

Answer: C

This question in 9700/12 May/June 2023

Q323 · The electron micrograph shows a structure found in the cytoplasm of an animal cell 9700/13 May/June 2023

2 The electron micrograph shows a structure found in the cytoplasm of an animal cell. Which biological molecules are found in this structure? 1 nucleic acids 2 proteins 3 phospholipids A 1 and 3 B 1 only C 2 and 3 D 2 only

1 marks

Answer: D

This question in 9700/13 May/June 2023

Q324 · Which cell structures contain nucleic acid? 9700/13 May/June 2023

3 Which cell structures contain nucleic acid? 1 cytoplasm 2 lysosomes 3 mitochondria A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 3 only

1 marks

Answer: C

This question in 9700/13 May/June 2023

Q325 · Mitochondria are thought to have evolved from prokaryotic cells that were ingested by an… 9700/13 May/June 2023

4 Mitochondria are thought to have evolved from prokaryotic cells that were ingested by an ancestral cell. Which feature have prokaryotes lost during their evolution into mitochondria? A cell wall B circular chromosome C endoplasmic reticulum D ribosomes

1 marks

Answer: A

This question in 9700/13 May/June 2023

Q326 · What is correct about the synthesis and release of the glycoprotein mucin in goblet cells? 9700/12 Oct/Nov 2023

3 What is correct about the synthesis and release of the glycoprotein mucin in goblet cells? 1 The protein is produced on ribosomes and a carbohydrate chain is added in the Golgi body. 2 The glycoproteins are packed into vesicles in the Golgi body forming lysosomes. 3 Secretory vesicles containing the glycoprotein move from the Golgi body and fuse with the cell surface membrane. A 1, 2 and 3 B 1 and 3 only C 1 only D 2 and 3 only

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2023

Q327 · What are functions of microtubules? 9700/12 Oct/Nov 2023

4 What are functions of microtubules? 1 allowing movement of cilia in a bronchus 2 attachment to centromeres during metaphase 3 moving secretory vesicles around a cell A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: A

This question in 9700/12 Oct/Nov 2023

Q328 · Which organelles contain nucleic acids? 9700/12 Oct/Nov 2023

5 Which organelles contain nucleic acids? Golgi body B A C mitochondrion D chloroplast

1 marks

Answer: D

This question in 9700/12 Oct/Nov 2023

Q329 · Some features of cells are listed 9700/12 Oct/Nov 2023

6 Some features of cells are listed. 1 cell wall 2 cell surface membrane 3 ribosomes Which features can be found in plant cells and in prokaryotic cells? A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: A

This question in 9700/12 Oct/Nov 2023

Q330 · What is the correct order for the involvement of the cell structures in the synthesis and… 9700/13 Oct/Nov 2023

3 What is the correct order for the involvement of the cell structures in the synthesis and secretion of an enzyme? 1 cell surface membrane 2 Golgi body 3 nucleus 4 rough endoplasmic reticulum A 1 → 2 → 3 → 4 B 2 → 1 → 3 → 4 C 3 → 4 → 2 → 1 D 4 → 3 → 2 → 1

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2023

Q331 · Centrioles, cilia, microtubules and microvilli are structures found in eukaryotic cells 9700/13 Oct/Nov 2023

4 Centrioles, cilia, microtubules and microvilli are structures found in eukaryotic cells. Which statement about these cellular structures is correct? A Centrioles, cilia and microvilli are composed of microtubules. B Centrioles play a role in mitosis and semi-conservative DNA replication. C Cilia and microvilli both increase the cell surface area for absorption. D Microtubules are made of protein and form the spindle in mitosis.

1 marks

Answer: D

This question in 9700/13 Oct/Nov 2023

Q332 · Which description of plasmodesmata is correct? 9700/13 Oct/Nov 2023

5 Which description of plasmodesmata is correct? A They are channels through plant cell walls, lined by the cell surface membrane. B They are channels through plant cell walls that are formed from proteins. C They are channels required for the movement of water through the apoplast pathway. D They can become lignified and form pits in the walls of xylem vessel elements.

1 marks

Answer: A

This question in 9700/13 Oct/Nov 2023

Q333 · Which cell organelle does not have nucleic acids? 9700/13 Oct/Nov 2023

6 Which cell organelle does not have nucleic acids? A chloroplast B Golgi body C mitochondrion D ribosome

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2023

Q334 · Which processes occur in eukaryotes and prokaryotes? 9700/13 Oct/Nov 2023

7 Which processes occur in eukaryotes and prokaryotes? 1 hydrolysis 2 mitosis 3 transcription 4 translation A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2023

Q335 · Some stains can be used to identify cell structures in living cells 9700/12 Feb/March 2024

3 Some stains can be used to identify cell structures in living cells. A dilute solution of one stain causes the whole cell to appear blue. The blue colour rapidly disappears from most cell structures. Those cell structures that release energy stay blue. Which type of cell structure is likely to stay blue? A endoplasmic reticulum B Golgi body C lysosome D mitochondrion

1 marks

Answer: D

This question in 9700/12 Feb/March 2024

Q336 · When mucus is secreted from a goblet cell, these events take place 9700/12 Feb/March 2024

4 When mucus is secreted from a goblet cell, these events take place. 1 addition of carbohydrate to protein 2 fusion of a vesicle with the cell surface membrane 3 extracellular release of a glycoprotein 4 separation of a vesicle from the Golgi body What is the sequence in which these events take place? A 1 →4 →2 →3 B 1 →4 →3 →2 C 4 →1 →2 →3 D 4 →1 →3 →2

1 marks

Answer: A

This question in 9700/12 Feb/March 2024

Q337 · The diagram shows four biological features 9700/12 Feb/March 2024

5 The diagram shows four biological features. 4 1 RNA DNA feature 3 2 70S capsid ribosomes Which biological features are present in typical prokaryotes? A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: C

This question in 9700/12 Feb/March 2024

Q338 · Which row shows features that occur in dicotyledonous plant cells and also in typical… 9700/12 Feb/March 2024

6 Which row shows features that occur in dicotyledonous plant cells and also in typical bacterial cells? key ✓= found in dicotyledonous plant cells and also in typical bacterial cells ✗= not found in at least one of these two types of cell 70S ribosomes 80S ribosomes centrioles circular DNA A ✓ ✗ ✓ ✗ B ✓ ✗ ✗ ✓ C ✗ ✓ ✓ ✗ D ✗ ✓ ✗ ✓

1 marks

Answer: B

This question in 9700/12 Feb/March 2024

Q339 · Which range of cell diameters is typical for prokaryotic cells? 9700/11 May/June 2024

2 Which range of cell diameters is typical for prokaryotic cells? A 1 nm to 5  102 nm B 1  103 nm to 5 m C 1  101 m to 5  102 m D 1  102 m to 5  103 m

1 marks

Answer: B

This question in 9700/11 May/June 2024

Q340 · The diagram shows a typical animal cell 9700/11 May/June 2024

3 The diagram shows a typical animal cell. 1 2 3 Where would nucleic acids be found? A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: A

This question in 9700/11 May/June 2024

Q341 · Which structure is found in a typical bacterial cell? 9700/11 May/June 2024

4 Which structure is found in a typical bacterial cell? A intron B telomere C template strand D capsid

1 marks

Answer: C

This question in 9700/11 May/June 2024

Q342 · Which row is correct for stem cells? 9700/11 May/June 2024

17 Which row is correct for stem cells? can be involved in the can repair cells formation of phagocytes A yes no B yes yes C no no D no yes

1 marks

Answer: D

This question in 9700/11 May/June 2024

Q343 · The diagram shows a plant cell with some labelled structures 9700/12 May/June 2024

2 The diagram shows a plant cell with some labelled structures. Q P R S Which labelled structures are bound by a double membrane? A P and Q B P and S C R and Q D R and S

1 marks

Answer: A

This question in 9700/12 May/June 2024

Q344 · Which size of ribosome is found in mitochondria and typical prokaryotic cells? 9700/12 May/June 2024

3 Which size of ribosome is found in mitochondria and typical prokaryotic cells? A 50S B 60S C 70S D 80S

1 marks

Answer: C

This question in 9700/12 May/June 2024

Q345 · Which row about typical prokaryotic cells and typical animal cells is correct? 9700/12 May/June 2024

4 Which row about typical prokaryotic cells and typical animal cells is correct? lysosomes present for the break down | /'P Is produced by the cell of old organelles A V x B V V Cc x V D x x key ¥ = correct for typical prokaryotic cells and typical animal cells X = not correct for both cells but correct for either typical prokaryotic cells or typical animal cells

1 marks

Answer: C

This question in 9700/12 May/June 2024

Q346 · Which row is correct for the structures present in typical plant cells and typical animal… 9700/12 May/June 2024

5 Which row is correct for the structures present in typical plant cells and typical animal cells? cell structure plant cell animal cell A plasmodesmata present present B Golgi body present not present C centriole not present present D tonoplast not present not present

1 marks

Answer: C

This question in 9700/12 May/June 2024

Q347 · The image is an electron micrograph of a typical eukaryotic cell 9700/13 May/June 2024

2 The image is an electron micrograph of a typical eukaryotic cell. What can be concluded about the eukaryotic cell from the electron micrograph? A It is an animal cell because it does not have a cell wall. B It is an animal cell because it contains a permanent vacuole. C It is a plant cell because it contains many chloroplasts. D It is a plant cell because it contains many lysosomes.

1 marks

Answer: A

This question in 9700/13 May/June 2024

Q348 · Which features are found in typical eukaryotes and also in typical bacteria? 9700/13 May/June 2024

3 Which features are found in typical eukaryotes and also in typical bacteria? can respire A C B messenger RNA binds to 80S contain D ribosomes circular DNA

1 marks

Answer: C

This question in 9700/13 May/June 2024

Q349 · Which type of cell will have the highest proportion of its volume taken up with cell… 9700/13 May/June 2024

4 Which type of cell will have the highest proportion of its volume taken up with cell structures bound by a single membrane? A ciliated epithelial cell B goblet cell C red blood cell D companion cell

1 marks

Answer: B

This question in 9700/13 May/June 2024

Q350 · Bacteria may be classified according to differences in cell wall structure 9700/13 May/June 2024

37 Bacteria may be classified according to differences in cell wall structure. The differences are shown by using the Gram stain. The diagram shows part of a Gram-positive bacterium and part of a Gram-negative bacterium, drawn to the same scale. external environment peptidoglycan layer Gram-positive bacterium periplasm (watery fluid containing proteins) cell surface membrane cytoplasm external environment outer membrane made of carbohydrate and lipid Gram-negative periplasm bacterium peptidoglycan layer periplasm cell surface membrane cytoplasm The antibiotic penicillin kills bacteria by inhibiting the synthesis of the cell walls during bacterial cell growth. Which type of bacteria will be killed by penicillin more easily and why? A Gram-positive bacteria because the peptidoglycan layer is exposed to penicillin directly B Gram-positive bacteria because it has a thinner layer surrounding the cell membrane overall C Gram-negative bacteria because the thin peptidoglycan layer can be broken down faster D Gram-negative bacteria because there is more periplasm available, which gives a weaker structure

1 marks

Answer: A

This question in 9700/13 May/June 2024

Q351 · Which statement explains why lymphocytes with no nucleoli die? 9700/11 Oct/Nov 2024

2 Which statement explains why lymphocytes with no nucleoli die? A The cells do not have centrioles and cannot divide. B The cells do not have mitochondria and cannot release energy. C The cells do not have mRNA and cannot transcribe DNA. D The cells do not have ribosomes and cannot synthesise protein.

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2024

Q352 · Which cell structures contain nucleic acids? 9700/11 Oct/Nov 2024

4 Which cell structures contain nucleic acids? 1 chloroplasts 2 Golgi bodies 3 lysosomes 4 ribosomes A 1, 2 and 3 B 1, 2 and 4 C 1 and 4 only D 2, 3 and 4

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2024

Q353 · How many types of structures with a double membrane that are found in animal cells are… 9700/11 Oct/Nov 2024

6 How many types of structures with a double membrane that are found in animal cells are also found in plant cells? A 1 B 2 C 3 D 4

1 marks

Answer: B

This question in 9700/11 Oct/Nov 2024

Q354 · The diagram shows the mean dimensions of an epithelial cell in micrometres (m) 9700/11 Oct/Nov 2024

17 The diagram shows the mean dimensions of an epithelial cell in micrometres (m). width 2 μm height 3 μm length 8 μm Which row shows the surface area to volume ratio of the epithelial cell and how the surface area to volume ratio of the cell would change if the cell width doubled? how surface area : volume surface area : volume changes if the cell width doubled A 12 : 23 decreases B 12 : 23 increases C 23 : 12 decreases D 23 : 12 increases

1 marks

Answer: C

This question in 9700/11 Oct/Nov 2024

Q355 · Which structures or compounds are present in a typical cell that can be killed by… 9700/11 Oct/Nov 2024

37 Which structures or compounds are present in a typical cell that can be killed by penicillin? 1 circular DNA 2 cytoplasmic DNA 3 70S ribosomes 4 peptidoglycan A 1, 2, 3 and 4 B 1, 2 and 4 only C 1 and 2 only D 4 only

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2024

Q356 · Which statement supports the fact that mature plant cells contain organelles that carry… 9700/12 Oct/Nov 2024

3 Which statement supports the fact that mature plant cells contain organelles that carry out the same role as lysosomes? A A range of hydrolytic enzymes can be found within mature plant vacuoles. B Glycogen, found within vesicles, can be hydrolysed to glucose molecules. C Double membrane-bound vesicles are formed from plant Golgi bodies. D Vesicles, formed from the cell surface membrane, contain enzymes.

1 marks

Answer: A

This question in 9700/12 Oct/Nov 2024

Q357 · Which cell structures may contain cisternae? 9700/12 Oct/Nov 2024

4 Which cell structures may contain cisternae? chloroplast oncoplasmic Golgi body mitochondrion A JV v v x B Jv x x Jv Cc x J Jv x D x Jv x JV key ¥ = may contain cisternae X = does not contain cisternae

1 marks

Answer: C

This question in 9700/12 Oct/Nov 2024

Q358 · The diagram shows some cell structures of one type of cell 9700/12 Oct/Nov 2024

5 The diagram shows some cell structures of one type of cell. 1 5 2 4 3 Which labelled cell structures are present in typical eukaryotic cells and typical bacterial cells? A 1, 2, 3 and 4 B 1, 3, 4 and 5 C 1, 2 and 3 only D 3, 4 and 5 only

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2024

Q359 · The electron micrograph shows rod-shaped bacteria 9700/12 Oct/Nov 2024

17 The electron micrograph shows rod-shaped bacteria. length 2.0 μm diameter 0.5 μm The actual length of the bacterium is 2.0 m and the diameter is 0.5 m. Assume that the bacterium is cylinder-shaped. What is the surface area to volume ratio of the bacterium? A 3.0 : 1.0 B 5.0 : 1.0 C 8.0 : 1.0 D 9.0 : 1.0

1 marks

Answer: D

This question in 9700/12 Oct/Nov 2024

Q360 · Peptidoglycan is stained purple by the chemical crystal violet 9700/12 Oct/Nov 2024

40 Peptidoglycan is stained purple by the chemical crystal violet. Which cells would stain purple in the presence of crystal violet? A palisade mesophyll cells B Vibrio cholerae cells C Plasmodium falciparum cells D endothelial cells

1 marks

Answer: B

This question in 9700/12 Oct/Nov 2024

Q361 · Which cell structure is found in human cells and typical plant cells? 9700/13 Oct/Nov 2024

2 Which cell structure is found in human cells and typical plant cells? A 70S ribosomes B cilia C plasmodesmata D tonoplast

1 marks

Answer: A

This question in 9700/13 Oct/Nov 2024

Q362 · Which statements are correct for a typical prokaryotic cell? 9700/13 Oct/Nov 2024

3 Which statements are correct for a typical prokaryotic cell? 1 It contains 70S ribosomes. 2 It contains a cellulose cell wall. 3 It contains circular DNA. 4 It is up to 5 m in diameter. A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2024

Q363 · The diagram shows a typical animal cell 9700/13 Oct/Nov 2024

4 The diagram shows a typical animal cell. X What is the function of the membrane system labelled X? A lipid synthesis only B protein synthesis and transport C protein synthesis only D protein transport only

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2024

Q364 · What describes a lysosome? 9700/13 Oct/Nov 2024

5 What describes a lysosome? A a vesicle containing enzymes, enclosed by a double membrane, that is budded off the endoplasmic reticulum B a vesicle containing hydrolytic enzymes and surrounded by a single membrane, found only in phagocytes C a vesicle enclosed by a single membrane, containing several different hydrolytic enzymes that may act inside or outside the cell D a vesicle surrounded by a double membrane, containing enzymes which can hydrolyse damaged organelles in a cell

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2024

Q365 · There is a theory that mitochondria and chloroplasts were originally free-living… 9700/12 Feb/March 2025

2 There is a theory that mitochondria and chloroplasts were originally free-living prokaryotes. It is thought that millions of years ago these free-living prokaryotes were taken into larger cells by endocytosis where, instead of being digested, they became functional organelles. Which features of mitochondria and chloroplasts support this theory? 1 Mitochondria and chloroplasts are surrounded by double membranes. 2 Mitochondria and chloroplasts have small, circular DNA. 3 Mitochondria and chloroplasts synthesise proteins. A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: A

This question in 9700/12 Feb/March 2025

Q366 · Which row correctly describes a function of each cell structure? 9700/12 Feb/March 2025

3 Which row correctly describes a function of each cell structure? smooth lysosome mitochondrion endoplasmic reticulum A digestion of unwanted abundant in sites processing structures of active transport of proteins B digestion of unwanted ATP synthesis lipid production structures C spherical sacs containing abundant in sites lipid production hydrolytic enzymes of active transport D spherical sacs containing ATP synthesis processing of hydrolytic enzymes proteins

1 marks

Answer: B

This question in 9700/12 Feb/March 2025

Q367 · Which cell components are present in typical prokaryotic cells? 9700/12 Feb/March 2025

4 Which cell components are present in typical prokaryotic cells? cell wall 80S ribosomes v key / = present x x X = not present v

1 marks

Answer: B

This question in 9700/12 Feb/March 2025

Q368 · X-ray analysis of fossilised cells found in rocks in central India dating back 1.6… 9700/12 Feb/March 2025

5 X-ray analysis of fossilised cells found in rocks in central India dating back 1.6 billion years has revealed several features. 1 The cells are up to 145 m long. 2 The cells are joined end to end to form filaments. 3 The cells contain some internal cell structures. 4 The cells are surrounded by a cell wall. Which two features, when taken together, provide most support for the conclusion that the cells are plant cells? A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4

1 marks

Answer: B

This question in 9700/12 Feb/March 2025

Q369 · The electron micrograph shows an organelle found in some cells of many multicellular… 9700/12 Feb/March 2025

6 The electron micrograph shows an organelle found in some cells of many multicellular organisms. Which row shows structures that are expected to be present in cells that contain this organelle? cell wall centrioles plasmodesmata A x Jv x B Jv x x Cc x v v D Jv x v key / = expected to be present X = not expected to be present

1 marks

Answer: D

This question in 9700/12 Feb/March 2025

Q370 · The table compares some biochemical molecules of P, Q, R and S 9700/12 May/June 2025

4 The table compares some biochemical molecules of P, Q, R and S. chlorophyll oO DO VU Which row correctly identifies P, Q, R and S? Q R key / = present X = not present S) chloroplast chloroplast mitochondrion virus virus mitochondrion virus bacterium mitochondrion bacterium bacterium mitochondrion bacterium virus chloroplast chloroplast

1 marks

Answer: B

This question in 9700/12 May/June 2025

Q371 · Which cell structures contain enzymes and are enclosed by a double membrane? 9700/12 May/June 2025

5 Which cell structures contain enzymes and are enclosed by a double membrane? 1 nucleus 2 mitochondrion 3 chloroplast A 1, 2 and 3 B 1 and 2 only C 1 only D 2 and 3 only

1 marks

Answer: A

This question in 9700/12 May/June 2025

Q372 · What is the order of size of cell structures? 9700/12 May/June 2025

6 What is the order of size of cell structures? largest smallest A centrioles ribosomes lysosomes nucleoli B centrioles nucleoli lysosomes ribosomes C nucleoli lysosomes centrioles ribosomes D nucleoli centrioles ribosomes lysosomes

1 marks

Answer: C

This question in 9700/12 May/June 2025

Q373 · Prokaryotes and eukaryotes use extracellular enzymes 9700/12 May/June 2025

12 Prokaryotes and eukaryotes use extracellular enzymes. Extracellular digestive enzymes are found in the external environments of some prokaryotes. Some prokaryotes are digested by hydrolytic enzymes during phagocytosis by eukaryotic cells. Which row shows the locations where extracellular enzymes are produced? site of production of site of production of digestive enzymes hydrolytic enzymes used used by prokaryotes by eukaryotic phagocytes A inside cells inside cells B inside cells outside cells C outside cells inside cells D outside cells outside cells

1 marks

Answer: A

This question in 9700/12 May/June 2025

Q374 · The diagram was drawn from an electron micrograph of an animal cell 9700/13 May/June 2025

2 The diagram was drawn from an electron micrograph of an animal cell. Which diagram would represent the same cell viewed with a simple light microscope, using daylight as the only light source? A B C D

1 marks

Answer: A

This question in 9700/13 May/June 2025

Q375 · Which cell structures contain ribosomal RNA? 9700/13 May/June 2025

4 Which cell structures contain ribosomal RNA? 1 chloroplasts 2 mitochondria 3 nuclei A 1, 2 and 3 B 1 and 2 only C 2 and 3 only D 3 only

1 marks

Answer: A

This question in 9700/13 May/June 2025

Q376 · Immature red blood cells contain all the usual organelles and cell structures associated… 9700/13 May/June 2025

5 Immature red blood cells contain all the usual organelles and cell structures associated with animal cells. Mature red blood cells are specialised cells that have lost their organelles and cell structures. Which statement correctly compares red blood cells with typical plant cells? A There are no mitochondria in mature red blood cells or plant cells. B The only ribosomes found in immature red blood cells and plant cells are 80S ribosomes. C There are no centrioles in mature red blood cells or plant cells. D Immature red blood cells and plant cells contain large permanent vacuoles.

1 marks

Answer: C

This question in 9700/13 May/June 2025

Q377 · A culture of human cells had its cell surface membranes removed, releasing the cell… 9700/13 May/June 2025

6 A culture of human cells had its cell surface membranes removed, releasing the cell contents. This material became contaminated by bacteria. The material was then centrifuged, separating out the various cell structures according to size and mass. Which cell structure would be separated out along with the bacteria? A endoplasmic reticulum B mitochondria C nuclei D ribosomes

1 marks

Answer: B

This question in 9700/13 May/June 2025

Q378 · The diagram shows the structure of a virus 9700/13 May/June 2025

7 The diagram shows the structure of a virus. 1 2 Which row identifies the correct description of the structures labelled 1 and 2? 1 2 A protein coat called virus envelope made the capsid from phospholipids B virus envelope made protein coat called from phospholipids the capsid C virus envelope made phospholipid coat from protein called the capsid D phospholipid coat virus envelope made called the capsid from protein

1 marks

Answer: A

This question in 9700/13 May/June 2025

Q379 · What are found in chloroplasts and also in mitochondria? 9700/14 May/June 2025

4 What are found in chloroplasts and also in mitochondria? 1 DNA 2 70S ribosomes 3 mRNA A 1, 2 and 3 B 1 and 2 only C 1 only D 2 and 3 only

1 marks

Answer: A

This question in 9700/14 May/June 2025

Q380 · A long-distance runner has become adapted to run faster for longer after regular training 9700/14 May/June 2025

5 A long-distance runner has become adapted to run faster for longer after regular training. Which cell structure in a muscle cell has increased in number to allow this adaptation? A lysosome B mitochondrion C nucleus D smooth endoplasmic reticulum

1 marks

Answer: B

This question in 9700/14 May/June 2025

Q381 · Some functions carried out within eukaryotic cells are listed 9700/14 May/June 2025

6 Some functions carried out within eukaryotic cells are listed. 1 lysosome production 2 polypeptide modification 3 exocytosis Which functions are carried out by the Golgi body? A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: B

This question in 9700/14 May/June 2025

Q382 · The diagram shows the structure of a unicellular organism 9700/14 May/June 2025

7 The diagram shows the structure of a unicellular organism. nucleus mitochondria cell membrane vacuole cytoplasm Which statement is correct for this organism? A It contains a nucleus so it is not prokaryotic. B It contains mitochondria so it is not a plant. C It does not have a cell wall so it must be eukaryotic. D It is unicellular so it must be a bacterium.

1 marks

Answer: A

This question in 9700/14 May/June 2025

Q383 · A cell absorbs amino acids 9700/14 May/June 2025

19 A cell absorbs amino acids. This cell then synthesises and exports a digestive enzyme. Different cell structures are involved with different stages of this process. Which row shows a possible sequence of cell structures that the amino acids pass through? rough cell surface secretory Golgi body endoplasmic membrane vesicle reticulum A 1st 2nd 3rd 4th B 1st 3rd 4th 2nd C 4th 2nd 1st 3rd D 4th 1st 2nd 3rd

1 marks

Answer: C

This question in 9700/14 May/June 2025

Q384 · What is a function of Golgi bodies? 9700/11 Oct/Nov 2025

2 What is a function of Golgi bodies? A formation of vesicles for endocytosis B modification of proteins for secretion C synthesis of ATP D synthesis of polypeptides

1 marks

Answer: B

This question in 9700/11 Oct/Nov 2025

Q385 · Acell in the human body is specialised for synthesis and secretion of lipids 9700/11 Oct/Nov 2025

3. Acell in the human body is specialised for synthesis and secretion of lipids. Which row shows the organelles required by the cell for synthesis and secretion of lipids? smooth mitochondria | endoplasmic vesicles reticulum key v = required X = not required

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2025

Q386 · The photomicrograph shows part of a cell 9700/11 Oct/Nov 2025

4 The photomicrograph shows part of a cell. Which row is correct? the organelles this cell will this could be | shown could be contain 70S part of a used to make ribosomes plant cell antibodies key ¥ = correct X = not correct

1 marks

Answer: A

This question in 9700/11 Oct/Nov 2025

Q387 · Which statement about viruses is correct? 9700/11 Oct/Nov 2025

5 Which statement about viruses is correct? A They are cells with a capsid made of phospholipids. B They are cells with a capsid made of protein. C They are particles with a capsid made of phospholipids. D They are particles with a capsid made of protein.

1 marks

Answer: D

This question in 9700/11 Oct/Nov 2025

Q388 · Cell structures can be isolated by centrifuging the cells in a sucrose density gradient 9700/13 Oct/Nov 2025

2 Cell structures can be isolated by centrifuging the cells in a sucrose density gradient. This breaks up the cells and separates the cell structures into fractions. The diagram shows the positions of some of these fractions in a sucrose density gradient. fraction 1: ribosomes fraction 2: lysosomes sucrose density gradient fraction 3: mitochondria fraction 4: chloroplast Which fractions contain cell structures that carry out protein synthesis? A 1, 2 and 3 B 1, 3 and 4 C 1 only D 2, 3 and 4

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2025

Q389 · The diagram shows a plant cell 9700/13 Oct/Nov 2025

3 The diagram shows a plant cell. 4 1 2 3 Which labelled organelles would contain nucleotides? A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2025

Q390 · The image shown is produced using a microscope 9700/13 Oct/Nov 2025

4 The image shown is produced using a microscope. How many statements about this image are correct? ● It is an electron micrograph. ● It shows part of a eukaryotic cell. ● It shows at least one mitochondrion. ● It shows a specimen viewed at more than 400 magnification. A 1 B 2 C 3 D 4

1 marks

Answer: C

This question in 9700/13 Oct/Nov 2025

Q391 · Bacterial ribosomes consist of two subunits and a total of three rRNA molecules per… 9700/13 Oct/Nov 2025

5 Bacterial ribosomes consist of two subunits and a total of three rRNA molecules per ribosome. An analysis of all the 70S ribosomes from a single cell of the bacterium Escherichia coli showed that there were: ● 57 000 rRNA molecules ● three types of rRNA molecule ● 19 000 copies of each type of rRNA molecule. How many 70S ribosomes were there in the E. coli cell? A 9500 B 19 000 C 38 000 D 57 000

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2025

Q392 · Radioactively labelled amino acids are introduced into a tracheal cell that uses them to… 9700/13 Oct/Nov 2025

6 Radioactively labelled amino acids are introduced into a tracheal cell that uses them to make mucus (a glycoprotein). 1 2 3 4 Which route will the amino acids take? first last A 1 2 3 4 B 1 4 3 2 C 4 1 2 3 D 4 3 2 1

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2025

Q393 · Which features shown in the diagram can be present in viruses? 9700/13 Oct/Nov 2025

7 Which features shown in the diagram can be present in viruses? 4 1 RNA DNA feature 3 2 70S protein coat ribosomes A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: B

This question in 9700/13 Oct/Nov 2025