A-LevelBiologyTransport in mammals9700/12 · May/June 2012 · Q221 Mark

Which statements describe why a large animal has had to evolve a transport system? 1 diffusion occurs slowly over long distances 2 it has a high rate of gas exchange 3 it has a large surface area to volume ratio

A1 only

B3 only

C1 and 2 only

D1, 2 and 3

✓ Correct answer

A: 1 only

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Topic: Transport in mammals, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, May/June 2012 Paper 1 Variant 2, question 22.

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