0653.B11.1.02 — Investigate and describe the effects of physical activity on the rate and depth of breathing: past paper questions
Real questions on 0653.b11.1.02 — investigate and describe the effects of physical activity on the rate and depth of breathing
The newest 5 of 5 written questions. Open one to see it on the real paper.
- 0653/43 · October/November 2023 · Q1b(i)[1]
Identify the student in Table 1.1 with the lowest breathing rate before physical activity.
See it on the paper → - 0653/43 · October/November 2023 · Q1b(ii)[2]
Calculate the average difference in breathing rate. Give your answer to the nearest whole number. average difference = breaths per minute
See it on the paper → - 0653/43 · October/November 2023 · Q1b(iii)[3]
Explain the effect of physical activity on breathing rate shown in Table 1.1. Include ideas about carbon dioxide in your answer.
See it on the paper → - 0653/43 · May/June 2022 · Q4b(i)[3]
Explain the results between 5 and 10 minutes in Fig. 4.2.
See it on the paper → - 0653/43 · May/June 2022 · Q4b(ii)[2]
Describe two ways the athlete’s breathing changes between 25 and 30 minutes in Fig. 4.2.
See it on the paper →
What examiners said
Most candidates correctly calculated the average difference. Some candidates did not give their answer to the nearest whole number.
— Examiner report, October/November 2023, 0653/43 Q1(b)(ii) (Cambridge)
Many candidates answered in terms of the body needing more oxygen, rather than the idea that carbon dioxide concentrations in the blood increase during physical activity. Only the strongest responses included ideas about respiration and carbon dioxide concentration in the blood.
— Examiner report, October/November 2023, 0653/43 Q1(b)(iii) (Cambridge)
The strongest answers made the connection between increased energy demanded by muscles when working harder and that this extra energy is provided by increased respiration which in turn requires an increased oxygen supply. Full credit was awarded to a small number of candidates, and many were awarded at least two marks for a correct discussion of increased oxygen supply to allow increase respiratio...
— Examiner report, May/June 2022, 0653/43 Q4(b)(i) (Cambridge)
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