Cambridge IGCSE Science - Combined 0653 — 2022 May/June Paper 1 · Variant 1

Question 1

1 What is the outermost layer of an animal cell and a plant cell? animal cell plant cell A cell membrane cell membrane B cell membrane cell wall C cell wall cell membrane D cell wall cell wall

Accepted Answer

B

Question 2

2 Most cars burn fossil fuels to release energy for their movement. Which characteristic of living organisms is similar to this? A excretion B growth C nutrition D respiration

Accepted Answer

D

Question 3

3 The table shows the results of tests carried out on a food sample. test carried out final colour Benedict’s orange biuret blue ethanol emulsion milky white iodine brown What is present in the food sample? A oil and protein B oil and reducing sugar C protein and starch D reducing sugar and starch

Accepted Answer

B

Question 4

4 Which statement about enzymes is correct? A Enzymes are biological catalysts. B Enzymes are made of glycerol. C Enzymes are not affected by changes in pH. D Enzymes are not affected by changes in temperature.

Accepted Answer

A

Question 5

5 A plant that lives in water is exposed to sunlight. After a short period of time, bubbles of gas are given off from the plant. Which gas do the bubbles contain, and which process produces this gas? gas process A carbon dioxide photosynthesis B carbon dioxide respiration C oxygen photosynthesis D oxygen respiration

Accepted Answer

C

Question 6

6 Which foods are rich in carbohydrate? 1 eggs 2 meat 3 potatoes 4 rice A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4

Accepted Answer

D

Question 7

7 The diagram shows a cross-section of a dicotyledonous root. Which label correctly identifies the xylem? A B C D

Accepted Answer

C

Question 8

8 Physical activity affects our rate and depth of breathing. What happens during increased physical activity? rate of breathing depth of breathing A decreases decreases B decreases increases C increases decreases D increases increases

Accepted Answer

D

Question 9

9 Which responses occur as a result of adrenaline secretion?

increased decreased increased
breathing rate | pupil diameter pulse rate
A v x x
B J x J
Cc x Jv J
D x Jv x

key
JY = does occur

X = does not occur

Accepted Answer

B

Question 10

10 A plant seedling is pinned horizontally onto a damp board inside a light-proof box. The diagrams show the seedling at the start of the experiment and after 72 hours. start of experiment after 72 hours light-proof box root shoot pin damp board Which response is shown by the root and the shoot? root shoot A gravitropism gravitropism B gravitropism phototropism C phototropism gravitropism D phototropism phototropism

Accepted Answer

A

Question 11

11 A student investigates germination in bean seeds.

In which set of conditions will the seeds germinate?

water no water no water water
carbon dioxide oxygen carbon dioxide oxygen

Accepted Answer

D

Question 12

12 Two food chains are shown. wheat    vole    fox    tick grass    rabbit    fox    flea What are the vole and rabbit classified as in these food chains? A primary consumers B producers C secondary consumers D tertiary consumers

Accepted Answer

A

Question 13

13 Which process in the carbon cycle releases carbon into the environment? A feeding B fossilisation C photosynthesis D respiration

Accepted Answer

D

Question 14

14 What happens to water molecules when water freezes? A They become arranged more regularly. B They become smaller. C They move much closer together. D They move faster.

Accepted Answer

A

Question 15

15 Which row describes a chemical change? test result A one end of a piece of aluminium is heated the other end gets hot B calcium carbonate is heated carbon dioxide is made C a piece of iron is heated it becomes more malleable D a beaker of water is heated steam is made

Accepted Answer

B

Question 16

16 What describes a solvent? A a solid that dissolves in a liquid B the amount of solid that dissolves in a liquid C the liquid in which a solid dissolves D the mixture formed when a solid dissolves in a liquid

Accepted Answer

C

Question 17

17 Which groups of the Periodic Table form compounds containing covalent bonds? A Group I and Group 0 B Group I and Group VII C Group V and Group 0 D Group V and Group VII

Accepted Answer

D

Question 18

18 What is the chemical formula of nitric acid? A HCl B HNO3 C H2SO4 D NH3

Accepted Answer

B

Question 19

19 Which type of substance undergoes electrolysis? A molten covalent compounds B solid ionic compounds C gaseous covalent compounds D aqueous solutions of ionic compounds

Accepted Answer

D

Question 20

20 Which row shows what happens during an endothermic reaction? reaction mixture temperature thermal energy transfer A decreases from the surroundings B decreases to the surroundings C increases from the surroundings D increases to the surroundings

Accepted Answer

A

Question 21

21 Carbon reacts with carbon dioxide at high temperatures. carbon  +  carbon dioxide    carbon monoxide Which statement about the reaction is correct? A Both carbon and carbon dioxide are oxidised. B Both carbon and carbon dioxide are reduced. C The carbon is oxidised and the carbon dioxide is reduced. D The carbon is reduced and the carbon dioxide is oxidised.

Accepted Answer

C

Question 22

22 Three powders are added to dilute sulfuric acid, as shown.

magnesium
powder

dilute
sulfuric acid

Which powders react to produce water?

magnesium

oxide
powder

dilute
sulfuric acid

magnesium

magnesium
oxide

x \ x

magnesium
carbonate

\ \ «Ox

magnesium
carbonate
powder

dilute
sulfuric acid

key
¥ = does produce water

X = does not produce water

Accepted Answer

C

Question 23

23 The results of two tests on substance Q are shown. test result add dilute hydrochloric acid bubbles of colourless gas, R, to solid Q which turns limewater milky add aqueous sodium hydroxide green precipitate to a solution of Q Which cation is present in Q and what is gas R? cation present in Q gas R A iron(II) carbon dioxide B iron(II) chlorine C iron(III) carbon dioxide D iron(III) chlorine

Accepted Answer

A

Question 24

24 Which row describes a transition element? coloured acts as density compounds a catalyst A high no no B high yes yes C low no yes D low yes no

Accepted Answer

B

Question 25

25 Which substance does not react with chlorine? A H2 B Kr C Li D NaBr

Accepted Answer

B

Question 26

26 Which statement about a chemical test for water is correct? A Anhydrous cobalt(II) chloride turns blue. B Anhydrous cobalt(II) chloride turns white. C Anhydrous copper(II) sulfate turns blue. D Anhydrous copper(II) sulfate turns white.

Accepted Answer

C

Question 27

27 Methane, ethane and propane are all alkanes. Their formulae are shown. methane, CH4 ethane, C2H6 propane, C3H8 Which statement is not correct? A All three compounds are hydrocarbons. B All three compounds burn. C Methane is the main constituent of natural gas. D Propane burns completely to form carbon dioxide and hydrogen.

Accepted Answer

D

Question 28

28 The mass of a solid object is 1.6 kg and the volume of the object is 80 cm3. What is the density of the object? A 0.020 kg / cm3 B 0.20 kg / cm3 C 5.0 kg / cm3 D 50 kg / cm3

Accepted Answer

A

Question 29

29 Which statement about forces is always correct? A A resultant force is needed to keep an object moving at constant speed in a straight line. B Air resistance acting on an object falling in still air causes its speed to increase. C Friction on an object sliding along rough ground acts in the opposite direction to its motion. D No forces act on any object that is at rest.

Accepted Answer

C

Question 30

30 A man walking on snow in normal shoes sinks into the snow. The man puts on snow shoes and does not sink into the snow. snow shoe Which row explains why this happens? area of contact weight of man with snow A decreased decreased B decreased unchanged C increased decreased D increased unchanged

Accepted Answer

D

Question 31

31 Which two energy sources are both renewable? A coal and waves B geothermal and nuclear C oil and tides D wind and solar

Accepted Answer

D

Question 32

32 Which process is the escape of more-energetic molecules from the surface of a liquid? A condensation B convection C evaporation D radiation

Accepted Answer

C

Question 33

33 A mechanic cannot remove a large steel nut from a steel bolt because it is too tight. bolt nut What does the mechanic do to help remove the nut? A cool the nut and heat the bolt B heat the bolt only C heat the nut and the bolt through the same temperature rise D heat the nut only

Accepted Answer

D

Question 34

34 The diagram shows a ray of light being reflected from a plane mirror. Four angles are labelled p, q, r and s. plane mirror p s q r normal Which angles are the angle of incidence and the angle of reflection? angle of angle of incidence reflection A p r B p s C q r D q s

Accepted Answer

C

Question 35

35 Which region of the electromagnetic spectrum is used in remote controllers to control a television? A microwaves B infrared C ultraviolet D visible light

Accepted Answer

B

Question 36

36 Two balloons X and Y are suspended by insulating threads. They are each held near a negatively charged balloon. The balloons hang as shown. insulating insulating threads threads – – – – – – – – – – – – – X – – Y ––– – – – – – – What is the charge on balloon X and what is the charge on balloon Y? balloon X balloon Y A negative negative B negative positive C positive negative D positive positive

Accepted Answer

B

Question 37

37 A student sets up a circuit to measure the current in a lamp and the potential difference (p.d.) across it. Which circuit shows the correct connection of the ammeter and the voltmeter? A B A V A V C D V V A A

Accepted Answer

B

Question 38

38 The diagram shows a label on the side of a lamp. 12 V 3.0 A 36 W What is the resistance of the lamp when it is operating normally? A 0.25  B 0.33  C 3.0  D 4.0 

Accepted Answer

D

Question 39

39 A circuit contains two lamps and a variable resistor. lamp 1 lamp 2 The resistance of the variable resistor is increased. What happens to the brightness of lamp 1 and what happens to the brightness of lamp 2? brightness of lamp 1 brightness of lamp 2 A decreases decreases B decreases increases C no change decreases D no change increases

Accepted Answer

A

Question 40

40 Identical resistors are connected together in different arrangements. Which arrangement has the greatest resistance between points X and Y? A B X Y X Y C D X Y X Y

Accepted Answer

A

Question paper16 pages

Mark scheme3 pages

Questions as text

Q1 · What is the outermost layer of an animal cell and a plant cell?

Q2 · Most cars burn fossil fuels to release energy for their movement

Q3 · The table shows the results of tests carried out on a food sample

Q4 · Which statement about enzymes is correct?

Q5 · A plant that lives in water is exposed to sunlight

Q6 · Which foods are rich in carbohydrate?

Q7 · The diagram shows a cross-section of a dicotyledonous root

Q8 · Physical activity affects our rate and depth of breathing

Q9 · Which responses occur as a result of adrenaline secretion?

Q10 · A plant seedling is pinned horizontally onto a damp board inside a light-proof box

Q11 · A student investigates germination in bean seeds

Q12 · Two food chains are shown

Q13 · Which process in the carbon cycle releases carbon into the environment?

Q14 · What happens to water molecules when water freezes?

Q15 · Which row describes a chemical change?

Q16 · What describes a solvent?

Q17 · Which groups of the Periodic Table form compounds containing covalent bonds?

Q18 · What is the chemical formula of nitric acid?

Q19 · Which type of substance undergoes electrolysis?

Q20 · Which row shows what happens during an endothermic reaction?

Q21 · Carbon reacts with carbon dioxide at high temperatures

Q22 · Three powders are added to dilute sulfuric acid, as shown

Q23 · The results of two tests on substance Q are shown

Q24 · Which row describes a transition element?

Q25 · Which substance does not react with chlorine?

Q26 · Which statement about a chemical test for water is correct?

Q27 · Methane, ethane and propane are all alkanes

Q28 · The mass of a solid object is 1.6 kg and the volume of the object is 80 cm3

Q29 · Which statement about forces is always correct?

Q30 · A man walking on snow in normal shoes sinks into the snow

Q31 · Which two energy sources are both renewable?

Q32 · Which process is the escape of more-energetic molecules from the surface of a liquid?

Q33 · A mechanic cannot remove a large steel nut from a steel bolt because it is too tight

Q34 · The diagram shows a ray of light being reflected from a plane mirror

Q35 · Which region of the electromagnetic spectrum is used in remote controllers to control a…

Q36 · Two balloons X and Y are suspended by insulating threads

Q37 · A student sets up a circuit to measure the current in a lamp and the potential difference…

Q38 · The diagram shows a label on the side of a lamp

Q39 · A circuit contains two lamps and a variable resistor

Q40 · Identical resistors are connected together in different arrangements

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