0653.B12.1.02 — Describe aerobic respiration as the chemical reactions in cells that use oxygen to break down nutrient molecules to release energy: past paper questions
Real questions on 0653.b12.1.02 — describe aerobic respiration as the chemical reactions in cells that use oxygen to break down nutrient molecules to release energy
The newest 17 of 17 written questions. Open one to see it on the real paper.
- 0653/42 · October/November 2025 · Q2a(ii)[2]
Respiration and protein synthesis are linked. Protein synthesis requires from respiration. Respiration is a chemical reaction in cells that breaks down Complete the sentences.
See it on the paper → - 0653/31 · May/June 2025 · Q1a(ii)[1]
State the function of mitochondria.
See it on the paper → - 0653/33 · May/June 2025 · Q2b(ii)[1]
Name the structures inside cells where aerobic respiration takes place.
See it on the paper → - 0653/41 · May/June 2025 · Q2c(ii)[3]
During germination, energy is released from stored carbohydrates in the seeds. Complete the sentences about this process. Energy is released from the carbohydrates by the process of aerobic . This is a chemical reaction in cells that uses gas to break down glucose.
See it on the paper → - 0653/43 · May/June 2025 · Q3b[2]
State the balanced symbol equation for aerobic respiration. (b) The breathing system excretes carbon dioxide produced in aerobic respiration.
See it on the paper → - 0653/32 · February/March 2025 · Q3c[2]
Blood transports oxygen to the muscles. Complete these sentences. Choose words from the list. You may use each word once, more than once or not at all. breakdown contraction division flow release synthesise The muscles use oxygen to energy from glucose by the process of aerobic respiration.
See it on the paper → - 0653/21 · October/November 2024 · Q9[1]
Which row completes the balanced chemical equation for aerobic respiration? C6H12O6 + ......1...... ......2...... + ......3......
See it on the paper → - 0653/21 · May/June 2024 · Q7[1]
What represents the correct equation for aerobic respiration using these molecules?
See it on the paper → - 0653/21 · May/June 2024 · Q8[1]
Which statement about adrenaline is correct?
See it on the paper → - 0653/63 · May/June 2024 · Q2[7]
When seeds germinate, they use oxygen gas for aerobic respiration. glucose + oxygen carbon dioxide + water When placed in a test‑tube as shown in Fig. 2.1, the seeds use up oxygen and the drop of liquid in the capillary tube moves towards the test‑tube. The greater the rate of respiration the faster the drop of liquid...
See it on the paper → - 0653/31 · October/November 2023 · Q7b[2]
All living organisms respire. State the word equation for aerobic respiration.
See it on the paper → - 0653/33 · October/November 2023 · Q1b(ii)[1]
Calculate the difference between the percentage of oxygen in inspired and expired air. %
See it on the paper → - 0653/33 · October/November 2023 · Q1b(iii)[1]
State the name of one process in the body that uses oxygen.
See it on the paper → - 0653/11 · May/June 2023 · Q1[1]
Which characteristic of living organisms involves chemical reactions in cells that break down nutrient molecules and release energy? A excretion B nutrition C respiration D sensitivity
See it on the paper → - 0653/43 · May/June 2023 · Q7c[2]
Glucose is transported in the blood. Glucose is needed for aerobic respiration. Define aerobic respiration.
See it on the paper → - 0653/12 · October/November 2022 · Q8[1]
What is the word equation for aerobic respiration?
See it on the paper → - 0653/41 · May/June 2020 · Q1a[2]
Explain why the percentage of carbon dioxide is greater in expired air than in inspired air.
See it on the paper →
What examiners said
Some candidates gained credit for this question, stating that the function of the mitochondria is to release energy by aerobic respiration. A common response that was not awarded credit occurred when candidates stated that mitochondria are the powerhouse of the cell. This response does not have enough detail to gain credit.
— Examiner report, May/June 2025, 0653/31 Q1(a)(ii) (Cambridge)
Some candidates successfully stated mitochondria as the site for aerobic respiration. The most common mistake was lungs. Candidates should understand the difference between aerobic respiration and breathing. Aerobic respiration is a chemical reaction which occurs in the mitochondria of cells whereas breathing ventilates the lungs.
— Examiner report, May/June 2025, 0653/33 Q2(b)(ii) (Cambridge)
Full credit was frequently awarded for completion of these statements. The most common mistake was to suggest carbon dioxide instead of oxygen. The better answers included the formula of glucose that had been carefully written, with subscripts smaller than the chemical symbols.
— Examiner report, May/June 2025, 0653/41 Q2(c)(ii) (Cambridge)
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