B7.1· 20 questions · 20 marks · 24 min · 2017–2025· Multiple choice
Every Cambridge IGCSE Sciences - Co-ordinated (Double) Paper 2 question on diet, laid out as 4 A4 pages with the mark scheme below. Nothing is left out. Free to read, no account.





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4 / 4Answers below. Sit the paper first if you are practising.
Pastlit
Sciences - Co-ordinated (Double) 0654 · Diet — Paper 2
IGCSE · topical answer key — answer key (teacher use)
Question
Answer
Marks
| Question | Answer | Marks | From |
|---|---|---|---|
| 1 | A | 1 | 0654/23 Oct/Nov 2017 |
| 2 | B | 1 | 0654/21 May/June 2019 |
| 3 | D | 1 | 0654/23 May/June 2019 |
| 4 | D | 1 | 0654/22 Oct/Nov 2019 |
| 5 | B | 1 | 0654/21 May/June 2020 |
| 6 | B | 1 | 0654/22 May/June 2020 |
| 7 | B | 1 | 0654/23 May/June 2020 |
| 8 | D | 1 | 0654/23 Oct/Nov 2020 |
| 9 | C | 1 | 0654/21 Oct/Nov 2021 |
| 10 | B | 1 | 0654/23 Oct/Nov 2022 |
| 11 | D | 1 | 0654/22 Feb/March 2023 |
| 12 | B | 1 | 0654/23 May/June 2023 |
| 13 | C | 1 | 0654/22 Oct/Nov 2023 |
| 14 | B | 1 | 0654/22 Feb/March 2024 |
| 15 | A | 1 | 0654/22 Feb/March 2024 |
| 16 | D | 1 | 0654/23 Oct/Nov 2024 |
| 17 | D | 1 | 0654/21 May/June 2025 |
| 18 | A | 1 | 0654/21 May/June 2025 |
| 19 | C | 1 | 0654/23 May/June 2025 |
| 20 | D | 1 | 0654/22 Oct/Nov 2025 |
8 Which row correctly matches the form of malnutrition with its possible outcome? form of malnutrition possible outcome A energy intake is greater than energy use obesity B high fat intake constipation C lack of dietary fibre starvation D lack of fat intake coronary heart disease
1 marks
Answer: A
6 Which disease is caused by a diet that is low in protein? A coronary heart disease B kwashiorkor C rickets D scurvy
1 marks
Answer: B
6 What is deficient in the diet when growing bones become soft and deformed? A iron B protein C vitamin C D vitamin D
1 marks
Answer: D
6 Which diet would be most likely to prevent anaemia and rickets? A high in calcium and vitamin C B high in calcium and vitamin D C high in iron and vitamin C D high in iron and vitamin D
1 marks
Answer: D
6 Why is calcium needed in the diet? A to make carbohydrates B to make teeth C to make enzymes D to make protein
1 marks
Answer: B
6 Why is calcium needed in the diet? A to make carbohydrates B to make teeth C to make enzymes D to make protein
1 marks
Answer: B
6 Why is calcium needed in the diet? A to make carbohydrates B to make teeth C to make enzymes D to make protein
1 marks
Answer: B
5 What is the effect of nitrate ion deficiency on plants? leaf colour growth A green good B green poor C yellow good D yellow poor
1 marks
Answer: D
6 Which nutrient is well provided by citrus fruits such as oranges and lemons? A carbohydrate B protein C vitamin C D vitamin D
1 marks
Answer: C
6 The condition kwashiorkor is characterised by a poor growth rate, swelling of the hands and feet, and a bulging stomach. Which component of a balanced diet is lacking in someone with kwashiorkor? A fibre B protein C iron D vitamin D
1 marks
Answer: B
5 Why are nitrate ions necessary for plant growth? A They are essential for producing starch. B They are found in the chloroplasts. C They are part of the cell sap. D They are used in making amino acids.
1 marks
Answer: D
6 A person is unwell with the following symptoms. ● swollen abdomen (belly) ● red patches on their skin ● loss of muscle mass What is the likely condition that this person has? A iron deficiency B kwashiorkor C marasmus D scurvy
1 marks
Answer: B
6 Which row provides the greatest amount of the nutrient needed to move food through the alimentary canal? nutrient content / 100 g calcium / mg fibre / g protein / g sugar / g A 36.0 5.1 9.0 24.8 B 35.0 2.8 3.3 20.0 C 46.0 10.9 9.0 0.8 D 8.5 0.0 28.0 0.0
1 marks
Answer: C
5 A farmer notices that the older leaves of his maize plant are becoming yellow between the veins. What is the plant lacking? A carbon dioxide B magnesium ions C sunlight D water
1 marks
Answer: B
6 Which statements are correct? 1 A lack of vitamin C causes scurvy. 2 A lack of vitamin D causes softening of bones. 3 A lack of calcium causes kwashiorkor. 4 A lack of iron causes marasmus. A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4
1 marks
Answer: A
6 Which component of a balanced diet is needed to prevent constipation? A carbohydrate B fat C protein D fibre
1 marks
Answer: D
4 Which substance is essential to make chlorophyll? A calcium ions B cellulose C iron ions D magnesium ions
1 marks
Answer: D
5 The table shows the energy demand of males and females of different ages. age energy demand / kJ per person per day range males females 0– 4 5520 5230 5–14 9100 7890 15–19 11 300 8870 20–59 10 290 8330 60+ 8410 7450 Which conclusions can be made from this data? 1 The energy demand of males is greater than that of females at all ages. 2 The energy demand of both males and females for age range 0– 4 is the lowest. 3 The energy demand of males and females decreases after age range 15–19. A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 only
1 marks
Answer: A
6 What reduces the risk of suffering from coronary heart disease? 1 exercise 2 low fat diet 3 high salt diet 4 smoking A 1, 2 and 3 B 1, 3 and 4 C 1 and 2 only D 3 and 4 only
1 marks
Answer: C
5 Which row shows the effect of magnesium ion deficiency on plants? leaf colour growth A green good B green poor C yellow good D yellow poor
1 marks
Answer: D