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Aerobic respiration: CAIE IGCSE Biology questions

Every CAIE IGCSE Biology exam question on 12.2 Aerobic respiration, June 2024 and the specimen papers, with its mark scheme and examiner’s report.

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346 questions

  1. Q26

    June 2024 · Paper 1

    1 mark12.2 Aerobic respiration
    The whole paper ↗
    June 2024 Paper 1, question 26: What is the word equation for aerobic respiration? A carbon dioxide + glucose → oxygen + water B carbon dioxide + water → oxygen + glucose C oxygen + glucose →

  2. Q3(c)(i)

    June 2024 · Paper 3

    2 marks12.2 Aerobic respiration
    The whole paper ↗
    June 2024 Paper 3, question 3(c)(i): Circle the two substances needed for aerobic respiration in humans. carbon dioxide glucose glycogen oxygen protein urea water [2]

  3. Q3(c)(ii)

    June 2024 · Paper 3

    1 mark12.2 Aerobic respiration2.1 Cell structure
    The whole paper ↗
    June 2024 Paper 3, question 3(c)(ii): State where aerobic respiration occurs in cells. [1]

  4. Q3(a)

    June 2024 · Paper 4

    5 marks2.1 Cell structure12.2 Aerobic respiration
    The whole paper ↗
    June 2024 Paper 4, question 3(a): Fig. 3.1 shows a drawing of a root hair cell and Fig. 3.2 shows a drawing of a palisade cell. chloroplast mitochondrion mitochondria Fig. 3.1 Fig. 3.2 Explain t

  5. Q2(d)(i)

    Specimen · Paper 3

    1 mark12.2 Aerobic respiration
    The whole paper ↗
    Specimen Paper 3, question 2(d)(i): State the name of the gas required for aerobic respiration. [1]

  6. Q2(d)(ii)

    Specimen · Paper 3

    1 mark12.2 Aerobic respiration2.1 Cell structure
    The whole paper ↗
    Specimen Paper 3, question 2(d)(ii): State where aerobic respiration occurs in a cell. [1]

  7. Q4(a)

    Specimen · Paper 4

    2 marks12.2 Aerobic respiration
    The whole paper ↗
    Specimen Paper 4, question 4(a): Yeast can respire aerobically and anaerobically. State the balanced chemical equation for aerobic respiration. [2]

  8. Q2(a)(i)

    Specimen · Paper 6

    1 mark12.2 Aerobic respiration
    The whole paper ↗
    Specimen Paper 6, question 2(a)(i): Record the position of the drop of coloured liquid in the capillary tube shown in Fig. 2.1 at the start and after 30 minutes. start mm after 30 minutes mm [1]

  9. Q2(a)(ii)

    Specimen · Paper 6

    1 mark12.2 Aerobic respiration
    The whole paper ↗
    Specimen Paper 6, question 2(a)(ii): Calculate the distance moved by the drop of coloured liquid in 30 minutes. distance moved mm [1]

  10. Q2(a)(iii)

    Specimen · Paper 6

    2 marks12.2 Aerobic respiration
    The whole paper ↗
    Specimen Paper 6, question 2(a)(iii): Calculate the rate of movement of the drop of coloured liquid in mm per minute. Give your answer to one decimal place. Space for working. mm per minute [2]

  11. Q2(b)(i)

    Specimen · Paper 6

    1 mark12.2 Aerobic respiration
    The whole paper ↗
    Specimen Paper 6, question 2(b)(i): Calculate the missing mean for animal species A. Write your answer in Table 2.1. [1]

  12. Q2(b)(ii)

    Specimen · Paper 6

    3 marks12.2 Aerobic respiration
    The whole paper ↗
    Specimen Paper 6, question 2(b)(ii): Plot a bar chart on the grid to show the mean rate of movement of the drop of coloured liquid in the capillary tube for the four animal species. [3]

  13. Q2(b)(iii)

    Specimen · Paper 6

    1 mark12.2 Aerobic respiration
    The whole paper ↗
    Specimen Paper 6, question 2(b)(iii): State the letter of the animal species which has the highest rate of respiration. [1]

  14. Q2(b)(iv)

    Specimen · Paper 6

    1 mark12.2 Aerobic respiration
    The whole paper ↗
    Specimen Paper 6, question 2(b)(iv): Suggest a suitable control for the investigation described in 2(b). [1]

  15. Q2(b)(v)

    Specimen · Paper 6

    2 marks12.2 Aerobic respiration
    The whole paper ↗
    Specimen Paper 6, question 2(b)(v): The student decided it would be better to calculate the rate of respiration per gram of animal so that the values could be compared. Describe how the student co
All 15 questions on Aerobic respiration, as a list
  1. June 2024, Paper 1, Q26 (1 mark): What is the word equation for aerobic respiration? A carbon dioxide + glucose → oxygen + water B carbon dioxide + water → oxygen + glucose C oxygen + glucose →
  2. June 2024, Paper 3, Q3(c)(i) (2 marks): Circle the two substances needed for aerobic respiration in humans. carbon dioxide glucose glycogen oxygen protein urea water [2]
  3. June 2024, Paper 3, Q3(c)(ii) (1 mark): State where aerobic respiration occurs in cells. [1]
  4. June 2024, Paper 4, Q3(a) (5 marks): Fig. 3.1 shows a drawing of a root hair cell and Fig. 3.2 shows a drawing of a palisade cell. chloroplast mitochondrion mitochondria Fig. 3.1 Fig. 3.2 Explain t
  5. Specimen, Paper 3, Q2(d)(i) (1 mark): State the name of the gas required for aerobic respiration. [1]
  6. Specimen, Paper 3, Q2(d)(ii) (1 mark): State where aerobic respiration occurs in a cell. [1]
  7. Specimen, Paper 4, Q4(a) (2 marks): Yeast can respire aerobically and anaerobically. State the balanced chemical equation for aerobic respiration. [2]
  8. Specimen, Paper 6, Q2(a)(i) (1 mark): Record the position of the drop of coloured liquid in the capillary tube shown in Fig. 2.1 at the start and after 30 minutes. start mm after 30 minutes mm [1]
  9. Specimen, Paper 6, Q2(a)(ii) (1 mark): Calculate the distance moved by the drop of coloured liquid in 30 minutes. distance moved mm [1]
  10. Specimen, Paper 6, Q2(a)(iii) (2 marks): Calculate the rate of movement of the drop of coloured liquid in mm per minute. Give your answer to one decimal place. Space for working. mm per minute [2]
  11. Specimen, Paper 6, Q2(b)(i) (1 mark): Calculate the missing mean for animal species A. Write your answer in Table 2.1. [1]
  12. Specimen, Paper 6, Q2(b)(ii) (3 marks): Plot a bar chart on the grid to show the mean rate of movement of the drop of coloured liquid in the capillary tube for the four animal species. [3]
  13. Specimen, Paper 6, Q2(b)(iii) (1 mark): State the letter of the animal species which has the highest rate of respiration. [1]
  14. Specimen, Paper 6, Q2(b)(iv) (1 mark): Suggest a suitable control for the investigation described in 2(b). [1]
  15. Specimen, Paper 6, Q2(b)(v) (2 marks): The student decided it would be better to calculate the rate of respiration per gram of animal so that the values could be compared. Describe how the student co

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