1 (a) Scientists measure the length of sperm cells from different animals. The animals are placed in size from animal A the smallest to animal F the largest. Fig. 1.1 shows the results. 0 0.02 A B C D animal E F 0.04 0.06 0.08 length of sperm cell / mm 0.10 0.12 0.16 0.18 0.20 0.14 Fig. 1.1 (i) Using Fig. 1.1, state the length of a sperm cell in animal B. … mm [1] (ii) State the animal with the shortest length of sperm. … [1] (iii) State evidence from Fig. 1.1 that shows that length of sperm does not increase with size of animal. … … [1] (b) Plant and animal cells both contain a nucleus. Name two other structures seen in both plant and animal cells. 1 … 2 … [2] (c) The boxes on the left show some of the parts of a plant cell. The boxes on the right show the functions of the parts. Draw lines to link each part with its function. part of plant cell function cell wall contains genetic material chloroplast contains cell sap and supports the cell nucleus site of photosynthesis vacuole strengthens the cell [3] (d) Substances enter and leave cells. Name the process by which substances enter the cells. … [1] (e) Explain why muscle cells need high rates of respiration. … … … … [2] [Total: 11]

1(a)(i) 0.12 (mm) ; 1 1(a)(ii) A ; 1 1(a)(iii) animal F is the biggest but does not have the longest length of sperm / animal D has the longest sperm but is not the biggest animal / avp ; 1 1(b) any two from: cell membrane ; cytoplasm ; AVP ; e.g. ribosomes / mitochondria 2 1(c) cell wall contains genetic material chloroplast contains cell sap and supports the cell nucleus site of photosynthesis vacuole strengthens the cell ;;; 3 1(d) diffusion ; 1 1(e) respiration releases energy ; (energy is required) for muscle contraction / movement ; 2

7 (a) A scientist investigates the effect of immersion of plant cells in different concentrations of sugar solution. Fig. 7.1 shows the appearance of the plant cells before immersion. Fig. 7.1 Beakers A–D contain different concentrations of sugar solution. Some plant cells are placed in each solution and left for an hour. Table 7.1 shows the results. Table 7.1 beaker A B C D appearance of plant cells after immersion (i) Describe the change seen to the plant cells placed in beaker A in Table 7.1. … … [1] (ii) Suggest which beaker contains the solution with the same concentration as the plant cells. Give a reason for your answer. beaker … reason … [2] (b) Water enters the plant through the root hair cells. Complete the flow chart to show the pathway of water through the cells of a plant. root hair cell … xylem … [2] (c) Xylem transports water through the plant stem. Name the tissue that transports sugars through the plant stem. … [1] (d) Water and carbon dioxide are raw materials required for photosynthesis. Name two other requirements for photosynthesis. 1 … 2 … [2] (e) Protecting land from deforestation helps stop the loss of soil. This is because tree roots hold the soil together, stopping it being washed away. Suggest two other benefits of protecting land from deforestation. 1 … … 2 … … [2] [Total: 10]

7(a)(i) the cell, swells / increases in size ; 1 7(a)(ii) B ; the cell has not changed ; 2 7(b) root cortex (cell) ; mesophyll (cell) ; 2 7(c) phloem ; 1 7(d) light ; chlorophyll ; AVP ; 2 7(e) any two from prevents extinction of animals ; conserves habitat ; protects food sources (for humans) ; maintains food, chains / webs ; maintains, wood / fuel (resources) ; idea of protecting natural beauty ; AVP ; max 2 2 (a)(i) To earn this mark, you must describe the change as the cell 'swells / increases in size'. (a)(ii) To earn these two marks, you must identify beaker 'B' and explain that 'the cell has not changed'. (b) To earn these two marks, you must correctly complete the flow chart with 'root cortex (cell)' and 'mesophyll (cell)'. (c) To earn this mark, you must name 'phloem' as the tissue that transports sugars. (d) To earn these two marks, you must state 'light' and 'chlorophyll' as factors required for photosynthesis, or provide another valid point. (e) To earn these two marks, you must state any two valid reasons for conserving plant species, such as preventing animal extinction, conserving habitats, protecting food sources, maintaining food chains/webs, maintaining wood/fuel resources, or protecting natural beauty.

7 (a) A scientist investigates the effect of immersion of plant cells in different concentrations of sugar solution. Fig. 7.1 shows the appearance of the plant cells before immersion. Fig. 7.1 Beakers A–D contain different concentrations of sugar solution. Some plant cells are placed in each solution and left for an hour. Table 7.1 shows the results. Table 7.1 beaker A B C D appearance of plant cells after immersion (i) Describe the change seen to the plant cells placed in beaker A in Table 7.1. … … [1] (ii) Suggest which beaker contains the solution with the same concentration as the plant cells. Give a reason for your answer. beaker … reason … [2] (b) Water enters the plant through the root hair cells. Complete the flow chart to show the pathway of water through the cells of a plant. root hair cell … xylem … [2] (c) Xylem transports water through the plant stem. Name the tissue that transports sugars through the plant stem. … [1] (d) Water and carbon dioxide are raw materials required for photosynthesis. Name two other requirements for photosynthesis. 1 … 2 … [2] (e) Protecting land from deforestation helps stop the loss of soil. This is because tree roots hold the soil together, stopping it being washed away. Suggest two other benefits of protecting land from deforestation. 1 … … 2 … … [2] [Total: 10]

7(a)(i) the cell, swells / increases in size ; 1 7(a)(ii) B ; the cell has not changed ; 2 7(b) root cortex (cell) ; mesophyll (cell) ; 2 7(c) phloem ; 1 7(d) light ; chlorophyll ; AVP ; 2 7(e) any two from prevents extinction of animals ; conserves habitat ; protects food sources (for humans) ; maintains food, chains / webs ; maintains, wood / fuel (resources) ; idea of protecting natural beauty ; AVP ; max 2 2 (a)(i) To earn this mark, you must describe the change as the cell 'swells / increases in size'. (a)(ii) To earn these two marks, you must identify 'B' as the beaker and explain that 'the cell has not changed'. (b) To earn these two marks, you must correctly complete the flow chart with 'root cortex (cell)' and 'mesophyll (cell)'. (c) To earn this mark, you must name 'phloem' as the tissue that transports sugars. (d) To earn these two marks, you must state 'light' and 'chlorophyll' as two factors required for photosynthesis, or provide another valid point. (e) To earn these two marks, you must state two valid reasons for conserving endangered species, such as preventing extinction, conserving habitats, protecting food sources, maintaining food chains/webs, maintaining wood/fuel resources, or protecting natural beauty.

7 (a) A student puts potato cubes in sugar solutions of different concentrations. The student records the mass of the potato cubes before and after immersion. The results are shown in Table 7.1. Table 7.1 sugar solution starting mass / g final mass / g difference in mass / g A 5.2 5.4 +0.2 B 5.2 5.2 0.0 C 5.3 4.2 –1.1 D 5.1 3.8 –1.3 E 5.0 2.4 –2.6 (i) Identify all the sugar solutions where the potato cubes lose mass. … [1] (ii) Describe how water is lost from the cells of the potato cubes. … … … … [2] (iii) Suggest which sugar solution has the same concentration as the cells inside the potato. … [1] (b) When an animal cell is placed in a very dilute sugar solution it will burst. Name the structure that stops plant cells bursting in very dilute sugar solutions. … [1] (c) Place ticks (3) in two boxes to show two uses of water in a plant. as a solvent as a material for photosynthesis as a material for respiration for transfer of electrical impulses for muscle contraction for breathing [2] (d) The list shows the parts involved in the pathway of water through a plant. Write numbers next to each part to show the correct order 1–4. Number 1 has been done for you. mesophyll cells … root cortex cells … root hair cells … xylem … [1] [Total: 8] 1

7(a)(i) C, D and E ; 1 7(a)(ii) by osmosis ; through, cell / partially permeable, membrane ; AVP ; max 2 7(a)(iii) B ; 1 7(b) cell wall ; 1 7(c) as a solvent ; as a material for photosynthesis ; 2 7(d) 4, 2, 1, 3 ; 1 (a)(i) To earn this mark, you must correctly identify all the sugar solutions (C, D, and E) where the potato cubes lost mass. (a)(ii) To earn the first mark, you must state that water is lost by osmosis. To earn the second mark, you must state that this occurs through the cell or partially permeable membrane. (a)(iii) To earn this mark, you must identify solution B as having the same concentration as the potato cells. (b) To earn this mark, you must state 'cell wall' as the structure that prevents plant cells from bursting. (c) To earn these marks, you must state two correct uses of water in plants, such as a solvent or a material for photosynthesis. (d) To earn this mark, you must correctly order the stages of the water cycle as 4, 2, 1, 3.

Cambridge IGCSE Co-ordinated Sciences · 0654

IGCSE Co-ordinated Sciences (0654) Movement into and out of cells past paper questions

Revise IGCSE Co-ordinated Sciences (0654) — Movement into and out of cells 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.

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

Movement into and out of cells in IGCSE Co-ordinated Sciences 0654 exams, 2020–2025

Across 2020–2025, Movement into and out of cells accounted for 81 questions worth 503 marks in Cambridge IGCSE Co-ordinated Sciences (0654) papers.

By year
Year	Questions	Marks
2020	13	70
2021	11	67
2022	14	94
2023	11	66
2024	12	78
2025	20	128

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Paper 1 · 15 qs
Paper 2 · 24 qs
Paper 3 · 19 qs
Paper 4 · 11 qs
Paper 5 · 4 qs
Paper 6 · 8 qs

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2021 Oct/Nov · Paper 3 · Q1 · 11 marks
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2021 May/Jun · Paper 3 · Q7 · 10 marks
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2021 May/Jun · Paper 3 · Q7 · 10 marks
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2021 Oct/Nov · Paper 3 · Q7 · 8 marks
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2021 Oct/Nov · Paper 1 · Q2 · 1 mark
Marking scheme
Mark scheme — 2021 Paper 1 Q2
Answer: C
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