A-LevelBiologyTransport in mammals9700/12 · Oct/Nov 2014 · Q291 Mark

Small arteries (arterioles) are found near tissues. One function of an arteriole is to increase or decrease the flow of blood to the tissues. Which tissues would be present in an arteriole wall to allow this function? 1 collagen 2 elastic 3 muscle

A1, 2 and 3

B1 and 3 only

C2 only

D3 only

✓ Correct answer

D: 3 only

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Topic: Transport in mammals, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2014 Paper 1 Variant 2, question 29.

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