O-LevelBiologyTransport in Humans5090/12 · May/June 2018 · Q181 Mark

The table shows the effect of exercise on the rate and depth of breathing. [Figure 18] What is the increase in the volume of air exchanged per minute after exercise, compared to at rest?

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A1000 cm³

B6000 cm³

C18000 cm³

D24 000 cm³

✓ Correct answer

C: 18000 cm³

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Topic: Transport in Humans, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2018 Paper 1 Variant 2, question 18.

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