plumiGas exchange in humans: CAIE IGCSE Biology questions
Every CAIE IGCSE Biology exam question on 11.1 Gas exchange in humans, June 2024 and the specimen papers, with its mark scheme and examiner’s report.
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Q2(c)
The whole paper ↗![Specimen Paper 3, question 2(c): Breathing is also affected by exercise. Describe the effects of exercise on breathing. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/061003-spec-02-c-qp.webp)
All 5 questions on Gas exchange in humans, as a list
- June 2024, Paper 1, Q25 (1 mark): The diagram shows the breathing system. Which structure is the diaphragm? A B D C
- June 2024, Paper 2, Q23 (1 mark): What are the functions of the diaphragm and the cilia in the human gas exchange system? diaphragm cilia A contracts to cause breathing in carry mucus to the thr
- Specimen, Paper 1, Q20 (1 mark): What are the approximate percentages of oxygen and carbon dioxide in inspired air? percentage of percentage of oxygen carbon dioxide A 16 4.00 B 16 8.00 C 20 0.
- Specimen, Paper 2, Q20 (1 mark): What are the approximate percentages of oxygen and carbon dioxide in inspired air? percentage of percentage of oxygen carbon dioxide A 16 4.00 B 16 8.00 C 20 0.
- Specimen, Paper 3, Q2(c) (2 marks): Breathing is also affected by exercise. Describe the effects of exercise on breathing. [2]
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