1 (a) It is recommended that people eat a balanced diet. Place a tick (3) next to the sentence that best describes a balanced diet. A balanced diet contains all the required nutrients in the correct amounts. A balanced diet contains the correct amounts of carbohydrates. A balanced diet contains lots of fruit and vegetables. A balanced diet contains no fats or salt. [1] (b) The boxes on the left show some nutrients. The boxes on the right show why the nutrients are needed by the body. Draw lines to link each nutrient with why it is needed by the body. nutrient why it is needed carbohydrate for bones and teeth fats insulation protein main source of energy vitamin D used for growth and repair [3] (c) List the three chemical elements that make up carbohydrates. … [1] (d) Benedict’s solution can be used to test for the presence of one type of carbohydrate. Name the carbohydrate that Benedict’s solution is used to test for. … [1] (e) Name the component of the diet that prevents constipation. … [1] (f) Eating less sugar can help prevent tooth decay. Describe one other way of taking care of teeth. … … [1] (g) Circle the two processes that occur in the mouth. ingestion digestion egestion fertilisation photosynthesis pollination transpiration [2] [Total: 10]

1(a) A diet containing all the required nutrients in the correct amounts ticked ; 1 1(b) carbohydrate for bones and teeth fats insulation protein main source of energy vitamin D used for growth and repair ;;; 3 1(c) carbon, hydrogen and oxygen ; 1 1(d) (reducing) sugar ; 1 1(e) fibre ; 1 1(f) regular brushing / AVP ; 1 1(g) ingestion circled ; digestion circled ; 2 (a) To earn the mark, you must tick the sentence that accurately defines a balanced diet as containing all required nutrients in the correct amounts. (b) To earn marks, you must correctly draw lines linking each of the four nutrients (carbohydrate, fats, protein, vitamin D) to their specific functions in the body. (c) To earn the mark, you must list all three chemical elements: carbon, hydrogen, and oxygen. (d) To earn the mark, you must name 'sugar' or 'reducing sugar' as the carbohydrate tested by Benedict's solution. (e) To earn the mark, you must name 'fibre' as the dietary component that prevents constipation. (f) To earn the mark, you must state 'regular brushing' or another valid preventative action for tooth decay. (g) To earn marks, you must circle both 'ingestion' and 'digestion' from the provided options.

4 (a) Fig. 4.1 shows some information about feeding relationships in a national park. • Lions are the top predator. Lions eat jackals. • Goats eat grass. • Goats are eaten by jackals. Fig. 4.1 (i) Use the information in Fig. 4.1 to construct a food chain containing all the organisms. [2] (ii) Use the information in Fig. 4.1 to identify the: producer … secondary consumer. … [2] (b) State the principal source of energy for all food chains. … [1] (c) Table 4.1 shows the number and types of teeth for goats and humans. Table 4.1 type of teeth number in goats number in humans incisors 8 8 canines 0 4 premolars 12 8 molars 12 12 (i) Goats have a greater total number of premolar and molar teeth than humans. Describe two other differences between the types and number of teeth in goats and humans. 1 … … 2 … … [2] (ii) Goats are herbivores. Humans are able to gain their energy by eating both animals and plants. Suggest reasons why goats have a greater total number of premolar and molar teeth than humans. … … … [2] (iii) Circle the top two layers in a human tooth. cement dentine enamel gum pulp nerve [2] [Total: 11]

4(a)(i) organisms in correct order ; all arrows drawn in the correct direction ; 2 4(a)(ii) producer grass ; secondary consumer jackal ; 2 4(b) the Sun ; 1 4(c)(i) (goats have) more premolar teeth than humans ; (goats have) fewer / no, canine teeth ; 2 4(c)(ii) goats, gain (all) their energy from plant material / only eats plants ; plant material requires more chewing / breaking down ; molars / premolars needed for chewing ; max 2 2 4(c)(iii) enamel ; dentine ; 2

10 (a) Fig. 10.1 is a diagram of the human alimentary canal and associated organs. … … … Fig. 10.1 (i) Label Fig. 10.1 on the answer lines provided. Choose words from the list. • anus • large intestine • mouth • pancreas • small intestine • stomach [3] (ii) Different processes occur in the alimentary canal. Complete Table 10.1 using words from the list in (a)(i). Table 10.1 process one part of the alimentary canal where process occurs ingestion egestion mechanical digestion [3] (b) Describe the role of chemical digestion in the alimentary canal. … … … … [2] (c) The boxes contain the beginnings and the endings of some sentences. Join one sentence beginning to one sentence ending to define the term assimilation. beginning ending Assimilation is the movement of digested food molecules into the cells of the body where they are excreted, becoming part of the faeces. Assimilation is the movement of digested food molecules into the lungs of the body where they are excreted, becoming part of the cells. Assimilation is the movement of undigested food molecules into the lungs of the body where they are used, becoming part of the faeces. Assimilation is the movement of undigested food molecules into the cells of the body where they are used, becoming part of the cells. [2] [Total: 10]

10(a)(i) stomach ; pancreas ; small intestine ; 3 10(a)(ii) mouth ; anus ; mouth / stomach ; 3 10(b) large / insoluble food molecules broken down into small / soluble molecules ; ref to absorption ; AVP ; max 2 2 10(c) ;; 2

10 (a) Fig. 10.1 is a diagram of the human alimentary canal and associated organs. … … … Fig. 10.1 (i) Label Fig. 10.1 on the answer lines provided. Choose words from the list. • anus • large intestine • mouth • pancreas • small intestine • stomach [3] (ii) Different processes occur in the alimentary canal. Complete Table 10.1 using words from the list in (a)(i). Table 10.1 process one part of the alimentary canal where process occurs ingestion egestion mechanical digestion [3] (b) Describe the role of chemical digestion in the alimentary canal. … … … … [2] (c) The boxes contain the beginnings and the endings of some sentences. Join one sentence beginning to one sentence ending to define the term assimilation. beginning ending Assimilation is the movement of digested food molecules into the cells of the body where they are excreted, becoming part of the faeces. Assimilation is the movement of digested food molecules into the lungs of the body where they are excreted, becoming part of the cells. Assimilation is the movement of undigested food molecules into the lungs of the body where they are used, becoming part of the faeces. Assimilation is the movement of undigested food molecules into the cells of the body where they are used, becoming part of the cells. [2] [Total: 10]

10(a)(i) stomach ; pancreas ; small intestine ; 3 10(a)(ii) mouth ; anus ; mouth / stomach ; 3 10(b) large / insoluble food molecules broken down into small / soluble molecules ; ref to absorption ; AVP ; max 2 2 10(c) ;; 2

Cambridge IGCSE Co-ordinated Sciences · 0654

IGCSE Co-ordinated Sciences (0654) Human nutrition past paper questions

Revise IGCSE Co-ordinated Sciences (0654) — Human nutrition with real Cambridge past-paper questions grouped by topic, each shown with its marking scheme. Working one topic at a time targets exactly the skill each question tests.

90 free questions from 2016–2021, each with its marking scheme. Open the full topical bank to filter by subtopic, paper, and year.

Human nutrition in IGCSE Co-ordinated Sciences 0654 exams, 2020–2025

Across 2020–2025, Human nutrition accounted for 148 questions worth 748 marks in Cambridge IGCSE Co-ordinated Sciences (0654) papers.

By year
Year	Questions	Marks
2020	16	64
2021	24	124
2022	23	103
2023	29	171
2024	33	155
2025	23	131

Most-tested subtopics

Appears in

Paper 1 · 44 qs
Paper 2 · 40 qs
Paper 3 · 22 qs
Paper 4 · 21 qs
Paper 5 · 10 qs
Paper 6 · 11 qs

All most-tested Co-ordinated Sciences topics

2021 Feb/Mar · Paper 3 · Q1 · 10 marks
Marking scheme
Get Steven’s plain-English explanation
2021 May/Jun · Paper 3 · Q4 · 11 marks
Marking scheme
Get Steven’s plain-English explanation
2021 May/Jun · Paper 3 · Q10 · 10 marks
Marking scheme
Get Steven’s plain-English explanation
2021 May/Jun · Paper 3 · Q10 · 10 marks
Marking scheme
Get Steven’s plain-English explanation
2021 Feb/Mar · Paper 1 · Q6 · 1 mark
Marking scheme
Mark scheme — 2021 Paper 1 Q6
Answer: D
Get Steven’s plain-English explanation