Questions as text
Q1 · A food contains reducing sugar, but no starch 0654/11 May/June 2006
7 A food contains reducing sugar, but no starch. What colours will be obtained if samples of the food are tested with Benedict's reagent and with iodine solution? Benedict's test iodine test A blue blue-black B blue brown C red-orange blue-black D red-orange brown
1 marks
Answer: D
This question in 0654/11 May/June 2006
Q2 · Food tests are performed on four substances 0654/11 Oct/Nov 2007
7 Food tests are performed on four substances.
Which substance contains fat and protein?
test reagent
Benedict's biuret ethanol iodine
A v x x v
B v v x x
Cc x v v x
D x x v v
key
¥ = positive test result
X = negative test result
1 marks
Answer: C
This question in 0654/11 Oct/Nov 2007
Q3 · Glucose gives a red precipitate when tested with reagent X 0654/11 Oct/Nov 2007
20 Glucose gives a red precipitate when tested with reagent X.
Cellulose, a protein and starch are broken down into their monomers.
Which of these monomers also give a red precipitate when tested with reagent X?
cellulose protein starch
0 OO DW >
~*~ KOM
Kk 4
\ 4 x
1 marks
Answer: C
This question in 0654/11 Oct/Nov 2007
Q4 · A chemical from a plant is tested 0654/11 Oct/Nov 2008
17 A chemical from a plant is tested. damp litmus paper chemical from a plant and lime (CaO) heat An alkaline gas, ammonia (NH3), is produced. What is the chemical from the plant? A cellulose B a protein C starch D a sugar
1 marks
Answer: B
This question in 0654/11 Oct/Nov 2008
Q5 · Proteins consist of long chains of …...1….. 0654/11 May/June 2009
17 Proteins consist of long chains of …...1…... molecules and always contain the elements carbon, hydrogen, nitrogen and …...2…... . Which words correctly complete gaps 1 and 2? 1 2 A amino acid oxygen B amino acid sulfur C glucose oxygen D glucose sulfur
1 marks
Answer: A
This question in 0654/11 May/June 2009
Q6 · Which molecules join into long chains to make proteins? 0654/12 Oct/Nov 2010
15 Which molecules join into long chains to make proteins? A amino acids B ethene C glucose D starch
1 marks
Answer: A
This question in 0654/12 Oct/Nov 2010
Q7 · Which cells produce starch in their cytoplasm? 0654/13 Oct/Nov 2010
5 Which cells produce starch in their cytoplasm? A all animal cells B all plant cells C some animal cells D some plant cells
1 marks
Answer: D
This question in 0654/13 Oct/Nov 2010
Q8 · Which molecules join into long chains to make proteins? 0654/13 Oct/Nov 2010
14 Which molecules join into long chains to make proteins? A amino acids B ethene C glucose D starch
1 marks
Answer: A
This question in 0654/13 Oct/Nov 2010
Q9 · Tests were carried out on a clear liquid 0654/11 May/June 2011
6 Tests were carried out on a clear liquid. The table shows the results.
test
result
biuret purple colour
ethanol white colour
iodine brown colour
What did the clear liquid contain?
fat protein starch
A Jv v v key
B J v x v= yes
Cc v x v X =no
D Xx v v
1 marks
Answer: B
This question in 0654/11 May/June 2011
Q10 · What is made when amino acids join together in a large chain? 0654/11 May/June 2011
17 What is made when amino acids join together in a large chain? A cellulose B glucose C protein D starch
1 marks
Answer: C
This question in 0654/11 May/June 2011
Q11 · Tests were carried out on a clear liquid 0654/12 May/June 2011
7
Tests were carried out on a clear liquid. The table shows the results.
test result
biuret purple colour
ethanol white colour
iodine brown colour
What did the clear liquid contain?
fat protein starch
A v v v
B v v x
Cc v x v
D x v v
key
v/=yes
X =no
1 marks
Answer: B
This question in 0654/12 May/June 2011
Q12 · What is made when amino acids join together in a large chain? 0654/12 May/June 2011
15 What is made when amino acids join together in a large chain? A cellulose B glucose C protein D starch
1 marks
Answer: C
This question in 0654/12 May/June 2011
Q13 · Tests were carried out on a clear liquid 0654/13 May/June 2011
7
Tests were carried out on a clear liquid. The table shows the results.
test result
biuret purple colour
ethanol white colour
iodine brown colour
What did the clear liquid contain?
fat protein starch
A v v v
B v v x
Cc v x v
D x v v
key
v/=yes
X =no
1 marks
Answer: B
This question in 0654/13 May/June 2011
Q14 · What is made when amino acids join together in a large chain? 0654/13 May/June 2011
15 What is made when amino acids join together in a large chain? A cellulose B glucose C protein D starch
1 marks
Answer: C
This question in 0654/13 May/June 2011
Q15 · In the diagram below, the compounds on the left are monomers and those on the right are… 0654/11 Oct/Nov 2011
17 In the diagram below, the compounds on the left are monomers and those on the right are polymers. amino acids 1 protein 2 3 glucose 4 starch Which two arrows link the monomer to the correct polymer? A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4
1 marks
Answer: B
This question in 0654/11 Oct/Nov 2011
Q16 · In the diagram below, the compounds on the left are monomers and those on the right are… 0654/13 Oct/Nov 2011
16 In the diagram below, the compounds on the left are monomers and those on the right are polymers. amino acids 1 protein 2 3 glucose 4 starch Which two arrows link the monomer to the correct polymer? A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4
1 marks
Answer: B
This question in 0654/13 Oct/Nov 2011
Q17 · Tests were carried out on a clear liquid, with the following results 0654/11 May/June 2013
6 Tests were carried out on a clear liquid, with the following results. test colour obtained Benedict’s blue biuret purple iodine blue/black What did the clear liquid contain? A protein only B protein and starch only C protein and reducing sugar only D protein, reducing sugar and starch
1 marks
Answer: B
This question in 0654/11 May/June 2013
Q18 · The table shows the results of food tests on a breakfast cereal 0654/12 May/June 2013
5 The table shows the results of food tests on a breakfast cereal. test result Benedict’s bright orange iodine dark blue biuret pale blue ethanol slightly milky solution What do these results show? A The cereal helps to reduce body weight. B The cereal is a source of energy. C The cereal is a source of vitamin C. D The cereal promotes muscle growth.
1 marks
Answer: B
This question in 0654/12 May/June 2013
Q19 · Tests were carried out on a clear liquid, with the following results 0654/13 May/June 2013
5 Tests were carried out on a clear liquid, with the following results. test colour obtained Benedict’s blue biuret purple iodine blue/black What did the clear liquid contain? A protein only B protein and starch only C protein and reducing sugar only D protein, reducing sugar and starch
1 marks
Answer: B
This question in 0654/13 May/June 2013
Q20 · Which row shows a chemical molecule and the basic unit from which it is made? 0654/11 Oct/Nov 2013
3 Which row shows a chemical molecule and the basic unit from which it is made? chemical molecule basic unit A glycogen amino acid B glycogen simple sugar C oil amino acid D oil simple sugar
1 marks
Answer: B
This question in 0654/11 Oct/Nov 2013
Q21 · Which row shows a chemical molecule and the basic unit from which it is made? 0654/12 Oct/Nov 2013
4 Which row shows a chemical molecule and the basic unit from which it is made? chemical molecule basic unit A glycogen amino acid B glycogen simple sugar C oil amino acid D oil simple sugar
1 marks
Answer: B
This question in 0654/12 Oct/Nov 2013
Q22 · Which row states the basic units from which the large molecules are made? 0654/12 May/June 2014
5 Which row states the basic units from which the large molecules are made? large molecules basic units A oil amino acids B oil simple sugars C protein amino acids D protein simple sugars
1 marks
Answer: C
This question in 0654/12 May/June 2014
Q23 · Nutrient molecules are made up from smaller molecules 0654/11 Oct/Nov 2015
6 Nutrient molecules are made up from smaller molecules. Nutrients can be identified by food tests. Which row correctly describes a protein? smaller molecules test which gives a positive result A amino acids Benedict’s test B amino acids biuret test C sugars Benedict’s test D sugars biuret test
1 marks
Answer: B
This question in 0654/11 Oct/Nov 2015
Q24 · Which chemical element is found in proteins, but not in carbohydrates or fats? 0654/11 May/June 2016
4 Which chemical element is found in proteins, but not in carbohydrates or fats? A carbon B hydrogen C oxygen D nitrogen
1 marks
Answer: D
This question in 0654/11 May/June 2016
Q25 · What is needed in a cell to make a protein molecule? 0654/12 May/June 2016
4 What is needed in a cell to make a protein molecule?
amino energy glycerol
A v v x
B v x v
Cc x v x
D x x v
key
v=yes
X =no
1 marks
Answer: A
This question in 0654/12 May/June 2016
Q26 · The structures of a carbohydrate and an amino acid are shown 0654/13 May/June 2016
16 The structures of a carbohydrate and an amino acid are shown. OH OH H OH H H H C C C C C C H H2N C C OH O H H OH H OH H O carbohydrate amino acid Which elements are present in both structures? A carbon, hydrogen and nitrogen only B carbon, hydrogen and oxygen only C carbon, nitrogen and oxygen only D carbon, hydrogen, nitrogen and oxygen
1 marks
Answer: B
This question in 0654/13 May/June 2016
Q27 · Which molecule contains carbon? 0654/11 Oct/Nov 2016
13 Which molecule contains carbon? A ammonia B fat C sulfuric acid D water
1 marks
Answer: B
This question in 0654/11 Oct/Nov 2016
Q28 · Which result with the biuret test would show protein is present? 0654/13 Oct/Nov 2016
3 Which result with the biuret test would show protein is present? A blue B green C orange D purple
1 marks
Answer: D
This question in 0654/13 Oct/Nov 2016
Q29 · Enzymes are biological catalysts 0654/12 May/June 2017
5 Enzymes are biological catalysts. To which group of compounds do enzymes belong? A carbohydrates B fats C hormones D proteins
1 marks
Answer: D
This question in 0654/12 May/June 2017
Q30 · A biuret test on a sample of food is positive 0654/13 May/June 2017
12 A biuret test on a sample of food is positive. Which nutrient does this result show to be present? A fat B glucose C protein D vitamin C
1 marks
Answer: C
This question in 0654/13 May/June 2017
Q31 · Food tests are performed on four substances 0654/11 Oct/Nov 2017
8 Food tests are performed on four substances.
Which substance contains fat and protein?
test reagent
Benedict's biuret ethanol iodine
A Jv v x x
B Jv x x Jv
Cc x v v x
D x x v v
key
¥ = positive test result
X = negative test result
1 marks
Answer: C
This question in 0654/11 Oct/Nov 2017
Q32 · Food tests are performed on four substances 0654/12 Oct/Nov 2017
8 Food tests are performed on four substances.
Which substance contains fat and protein?
test reagent
Benedict's biuret ethanol iodine
A J J x x
B J x x J
Cc x J J x
D x x Jv Jv
key
¥ = positive test result
X = negative test result
1 marks
Answer: C
This question in 0654/12 Oct/Nov 2017
Q33 · What type of substances are enzymes? 0654/13 Oct/Nov 2017
1 What type of substances are enzymes? A carbohydrates B fats C lipids D proteins
1 marks
Answer: D
This question in 0654/13 Oct/Nov 2017
Q34 · Food tests are performed on four substances 0654/13 Oct/Nov 2017
8 Food tests are performed on four substances.
Which substance contains fat and protein?
test reagent
Benedict's biuret ethanol iodine
A J J x x
B J x x J
Cc x J J x
D x x Jv Jv
key
¥ = positive test result
X = negative test result
1 marks
Answer: C
This question in 0654/13 Oct/Nov 2017
Q35 · Glycerol is a component of which large molecules? 0654/11 Oct/Nov 2018
4 Glycerol is a component of which large molecules? A fats B glycogen C proteins D starch
1 marks
Answer: A
This question in 0654/11 Oct/Nov 2018
Q36 · Which element is found in proteins but not in carbohydrates and fats? 0654/12 Oct/Nov 2018
3 Which element is found in proteins but not in carbohydrates and fats? A carbon B hydrogen C nitrogen D oxygen
1 marks
Answer: C
This question in 0654/12 Oct/Nov 2018
Q37 · During which food test is heat required? 0654/13 Oct/Nov 2018
4 During which food test is heat required? A fats B protein C reducing sugars D starch
1 marks
Answer: C
This question in 0654/13 Oct/Nov 2018
Q38 · Which chemical element is found in proteins, but not in carbohydrates or fats? 0654/11 May/June 2019
3 Which chemical element is found in proteins, but not in carbohydrates or fats? A carbon B hydrogen C oxygen D nitrogen
1 marks
Answer: D
This question in 0654/11 May/June 2019
Q39 · Which chemical element is found in proteins, but not in carbohydrates or fats? 0654/12 May/June 2019
3 Which chemical element is found in proteins, but not in carbohydrates or fats? A carbon B hydrogen C oxygen D nitrogen
1 marks
Answer: D
This question in 0654/12 May/June 2019
Q40 · Which chemical element is found in proteins, but not in carbohydrates or fats? 0654/13 May/June 2019
3 Which chemical element is found in proteins, but not in carbohydrates or fats? A carbon B hydrogen C oxygen D nitrogen
1 marks
Answer: D
This question in 0654/13 May/June 2019
Q41 · Which result with the biuret test shows that protein is present? 0654/11 Oct/Nov 2019
3 Which result with the biuret test shows that protein is present? A blue B green C orange D purple
1 marks
Answer: D
This question in 0654/11 Oct/Nov 2019
Q42 · Which result with the biuret test shows that protein is present? 0654/12 Oct/Nov 2019
3 Which result with the biuret test shows that protein is present? A blue B green C orange D purple
1 marks
Answer: D
This question in 0654/12 Oct/Nov 2019
Q43 · Which result with the biuret test shows that protein is present? 0654/13 Oct/Nov 2019
3 Which result with the biuret test shows that protein is present? A blue B green C orange D purple
1 marks
Answer: D
This question in 0654/13 Oct/Nov 2019
Q44 · A food contains reducing sugar, but no starch 0654/11 May/June 2020
3 A food contains reducing sugar, but no starch. What colours will be obtained if samples of the food are tested with Benedict’s solution and with iodine solution? Benedict’s test iodine test A blue blue-black B blue brown C red-orange blue-black D red-orange brown
1 marks
Answer: D
This question in 0654/11 May/June 2020
Q45 · A food contains reducing sugar, but no starch 0654/12 May/June 2020
3 A food contains reducing sugar, but no starch. What colours will be obtained if samples of the food are tested with Benedict’s solution and with iodine solution? Benedict’s test iodine test A blue blue-black B blue brown C red-orange blue-black D red-orange brown
1 marks
Answer: D
This question in 0654/12 May/June 2020
Q46 · A food contains reducing sugar, but no starch 0654/13 May/June 2020
3 A food contains reducing sugar, but no starch. What colours will be obtained if samples of the food are tested with Benedict’s solution and with iodine solution? Benedict’s test iodine test A blue blue-black B blue brown C red-orange blue-black D red-orange brown
1 marks
Answer: D
This question in 0654/13 May/June 2020
Q47 · Nutrient molecules are made up from smaller molecules 0654/11 Oct/Nov 2020
3 Nutrient molecules are made up from smaller molecules. Nutrients can be identified by food tests. Which row is true for a protein? smaller molecules test which gives a positive result A amino acids Benedict’s test B amino acids biuret test C sugars Benedict’s test D sugars biuret test
1 marks
Answer: B
This question in 0654/11 Oct/Nov 2020
Q48 · Which type of biological molecule contains carbon, hydrogen, oxygen and nitrogen? 0654/12 Oct/Nov 2020
3 Which type of biological molecule contains carbon, hydrogen, oxygen and nitrogen? A fat B protein C reducing sugar D starch
1 marks
Answer: B
This question in 0654/12 Oct/Nov 2020
Q49 · What colour does Benedict’s solution change to when heated with a reducing sugar? 0654/13 Oct/Nov 2020
3 What colour does Benedict’s solution change to when heated with a reducing sugar? A blue B blue-black C orange D purple
1 marks
Answer: C
This question in 0654/13 Oct/Nov 2020
Q50 · What are the molecules that make up fats and oils? 0654/12 Feb/March 2021
3 What are the molecules that make up fats and oils? A amino acids and glycerol B fatty acids and glycerol C glucose and amino acids D glucose and fatty acids
1 marks
Answer: B
This question in 0654/12 Feb/March 2021
Q51 · Three food tests are carried out on a sample of food 0654/11 May/June 2021
3 Three food tests are carried out on a sample of food. The results are shown in the table. food test final colour Benedict’s blue biuret blue iodine blue-black From these results, which nutrient is in the food? A reducing sugar B protein C starch D vitamin C
1 marks
Answer: C
This question in 0654/11 May/June 2021
Q52 · Which row matches the nutrient to the chemical elements that it contains? 0654/12 May/June 2021
3 Which row matches the nutrient to the chemical elements that it contains?
nutrient carbon hydrogen oxygen nitrogen
A fat v v x x
B protein Jv J Jv Jv
Cc starch v x v v
D sugar x v v v
key
/ = contains element
X = does not contain element
1 marks
Answer: B
This question in 0654/12 May/June 2021
Q53 · Which type of molecule are enzymes? 0654/12 May/June 2021
4 Which type of molecule are enzymes? A fat B carbohydrate C protein D DNA
1 marks
Answer: C
This question in 0654/12 May/June 2021
Q54 · Which row matches the nutrient to the chemical elements that it contains? 0654/13 May/June 2021
3 Which row matches the nutrient to the chemical elements that it contains?
nutrient carbon hydrogen oxygen nitrogen
A fat v v x x
B protein Jv J Jv Jv
Cc starch v x v v
D sugar x v v v
key
/ = contains element
X = does not contain element
1 marks
Answer: B
This question in 0654/13 May/June 2021
Q55 · Which type of molecule are enzymes? 0654/13 May/June 2021
4 Which type of molecule are enzymes? A fat B carbohydrate C protein D DNA
1 marks
Answer: C
This question in 0654/13 May/June 2021
Q56 · Which row shows a large molecule and a basic unit from which it is made? 0654/11 Oct/Nov 2021
3 Which row shows a large molecule and a basic unit from which it is made? large molecule basic unit A glycogen amino acid B glycogen glucose C oil amino acid D oil glucose
1 marks
Answer: B
This question in 0654/11 Oct/Nov 2021
Q57 · Which molecule contains carbon? 0654/12 Oct/Nov 2021
3 Which molecule contains carbon? A ammonia B fat C sulfuric acid D water
1 marks
Answer: B
This question in 0654/12 Oct/Nov 2021
Q58 · Which molecule contains carbon? 0654/13 Oct/Nov 2021
3 Which molecule contains carbon? A ammonia B fat C sulfuric acid D water
1 marks
Answer: B
This question in 0654/13 Oct/Nov 2021
Q59 · Which chemical element is found in all proteins, but not in all carbohydrates or fats? 0654/12 Feb/March 2022
3 Which chemical element is found in all proteins, but not in all carbohydrates or fats? A carbon B hydrogen C oxygen D nitrogen
1 marks
Answer: D
This question in 0654/12 Feb/March 2022
Q60 · Which small molecules are joined together to make a starch molecule? 0654/11 May/June 2022
3 Which small molecules are joined together to make a starch molecule? A amino acids B fatty acids C glucose D glycerol
1 marks
Answer: C
This question in 0654/11 May/June 2022
Q61 · Which reagent is used to test for the presence of protein in a food sample? 0654/12 May/June 2022
3 Which reagent is used to test for the presence of protein in a food sample? A Benedict’s solution B biuret C ethanol D iodine
1 marks
Answer: B
This question in 0654/12 May/June 2022
Q62 · Which reagent is used to test for the presence of protein in a food sample? 0654/13 May/June 2022
3 Which reagent is used to test for the presence of protein in a food sample? A Benedict’s solution B biuret C ethanol D iodine
1 marks
Answer: B
This question in 0654/13 May/June 2022
Q63 · Glycerol is a component of which large molecules? 0654/11 Oct/Nov 2022
3 Glycerol is a component of which large molecules? A fats B glycogen C proteins D starch
1 marks
Answer: A
This question in 0654/11 Oct/Nov 2022
Q64 · Which elements can be found in an enzyme molecule? 0654/11 Oct/Nov 2022
4 Which elements can be found in an enzyme molecule? 1 carbon 2 nitrogen 3 oxygen A 1, 2 and 3 B 1 and 3 only C 1 only D 2 only
1 marks
Answer: A
This question in 0654/11 Oct/Nov 2022
Q65 · Glycerol is a component of which large molecules? 0654/12 Oct/Nov 2022
3 Glycerol is a component of which large molecules? A fats B glycogen C proteins D starch
1 marks
Answer: A
This question in 0654/12 Oct/Nov 2022
Q66 · Glycerol is a component of which large molecules? 0654/13 Oct/Nov 2022
3 Glycerol is a component of which large molecules? A fats B glycogen C proteins D starch
1 marks
Answer: A
This question in 0654/13 Oct/Nov 2022
Q67 · Tests are carried out on a colourless liquid 0654/12 Feb/March 2023
3 Tests are carried out on a colourless liquid. The results are shown. test resultant colour biuret purple ethanol emulsion white iodine brown Which food groups does the liquid contain? A protein and fat B protein and starch C reducing sugar and fat D starch and fat
1 marks
Answer: A
This question in 0654/12 Feb/March 2023
Q68 · Linoleic acid is a fatty acid 0654/11 May/June 2023
3 Linoleic acid is a fatty acid. Which larger molecule may contain linoleic acid? A glycogen B oil C protein D starch
1 marks
Answer: B
This question in 0654/11 May/June 2023
Q69 · Which row shows the elements and the small molecules that are used to make the larger… 0654/12 May/June 2023
3 Which row shows the elements and the small molecules that are used to make the larger molecules? small larger elements molecule molecule A carbon, hydrogen and oxygen glucose fats B carbon, hydrogen, oxygen and nitrogen amino acids fats C carbon, hydrogen and oxygen glucose proteins D carbon, hydrogen, oxygen and nitrogen amino acids proteins
1 marks
Answer: D
This question in 0654/12 May/June 2023
Q70 · Which row shows the elements and the small molecules that are used to make the larger… 0654/13 May/June 2023
3 Which row shows the elements and the small molecules that are used to make the larger molecules? small larger elements molecule molecule A carbon, hydrogen and oxygen glucose fats B carbon, hydrogen, oxygen and nitrogen amino acids fats C carbon, hydrogen and oxygen glucose proteins D carbon, hydrogen, oxygen and nitrogen amino acids proteins
1 marks
Answer: D
This question in 0654/13 May/June 2023
Q71 · Which colour does Benedict’s solution change to when heated with a reducing sugar? 0654/11 Oct/Nov 2023
3 Which colour does Benedict’s solution change to when heated with a reducing sugar? A blue B blue-black C orange D purple
1 marks
Answer: C
This question in 0654/11 Oct/Nov 2023
Q72 · A colourless liquid gives the test results shown 0654/12 Oct/Nov 2023
3 A colourless liquid gives the test results shown. test colour obtained Benedict’s blue biuret purple iodine blue / black Which nutrients are in the colourless liquid? A protein, reducing sugar and starch B protein and reducing sugar only C protein and starch only D protein only
1 marks
Answer: C
This question in 0654/12 Oct/Nov 2023
Q73 · Which type of molecule are enzymes? 0654/12 Oct/Nov 2023
4 Which type of molecule are enzymes? A carbohydrate B fat C protein D starch
1 marks
Answer: C
This question in 0654/12 Oct/Nov 2023
Q74 · Which food test requires heating? 0654/13 Oct/Nov 2023
3 Which food test requires heating? A fat B protein C reducing sugar D starch
1 marks
Answer: C
This question in 0654/13 Oct/Nov 2023
Q75 · Which smaller molecules is glycogen made from? 0654/12 Feb/March 2024
3 Which smaller molecules is glycogen made from? A amino acids B fatty acids C glucose D glycerol
1 marks
Answer: C
This question in 0654/12 Feb/March 2024
Q76 · Which smaller molecules make up larger fat molecules? 0654/11 May/June 2024
3 Which smaller molecules make up larger fat molecules? A glucose and amino acids B glucose and fatty acids C glycerol and amino acids D glycerol and fatty acids
1 marks
Answer: D
This question in 0654/11 May/June 2024
Q77 · Three food tests are carried out on a sample of food 0654/11 Oct/Nov 2024
3 Three food tests are carried out on a sample of food. The results are shown. food test final colour Benedict’s blue biuret blue iodine blue-black From these results, which nutrient is in the food? A reducing sugar B protein C starch D fat
1 marks
Answer: C
This question in 0654/11 Oct/Nov 2024
Q78 · What is required to test for the presence of a reducing sugar? 0654/12 Oct/Nov 2024
3 What is required to test for the presence of a reducing sugar?
“solution | solution | Reet
A J x J
B x J J
c J x x
D x J x
1 marks
Answer: A
This question in 0654/12 Oct/Nov 2024
Q79 · What is required to test for the presence of a reducing sugar? 0654/13 Oct/Nov 2024
3 What is required to test for the presence of a reducing sugar?
“solution | solution | Reet
A J x J
B x J J
c J x x
D x J x
1 marks
Answer: A
This question in 0654/13 Oct/Nov 2024
Q80 · What is the test for the presence of protein in a food sample? 0654/12 Feb/March 2025
5 What is the test for the presence of protein in a food sample? A Benedict’s solution B biuret test C ethanol emulsion D iodine solution
1 marks
Answer: B
This question in 0654/12 Feb/March 2025
Q81 · Which molecules make up fats and oils? 0654/11 May/June 2025
4 Which molecules make up fats and oils? A amino acids and glycerol B fatty acids and glycerol C glucose and amino acids D glucose and fatty acids
1 marks
Answer: B
This question in 0654/11 May/June 2025
Q82 · Which row represents a food that contains a reducing sugar and a fat? 0654/11 Oct/Nov 2025
4 Which row represents a food that contains a reducing sugar and a fat? purple with orange with milky-white blue-black with biuret reagent Benedict’s solution with ethanol iodine solution A yes no no yes B yes no yes no C no yes no yes D no yes yes no
1 marks
Answer: D
This question in 0654/11 Oct/Nov 2025
Q83 · Which row matches the nutrient to the chemical elements that it contains? 0654/12 Oct/Nov 2025
2 Which row matches the nutrient to the chemical elements that it contains?
| nutrient
fat
protein
starch
glucose
carbon
hydrogen
oxygen
nitrogen
1 marks
Answer: B
This question in 0654/12 Oct/Nov 2025
Q84 · Which row matches the nutrient to the chemical elements that it contains? 0654/13 Oct/Nov 2025
2 Which row matches the nutrient to the chemical elements that it contains?
| nutrient
fat
protein
starch
glucose
carbon
hydrogen
oxygen
nitrogen
1 marks
Answer: B
This question in 0654/13 Oct/Nov 2025
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