A-LevelBiologyTransport in mammals9700/12 · May/June 2011 · Q241 Mark

Which features enable the aorta to withstand high pressure at ventricular systole?

Acollagen fibres and elastin fibres

Bcollagen fibres and endometrium

Celastin fibres and large lumen

Dsmooth muscle and small lumen

✓ Correct answer

A: collagen fibres and elastin fibres

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Topic: Transport in mammals, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, May/June 2011 Paper 1 Variant 2, question 24.

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