A-LevelBiologyTransport in mammals9700/12 · May/June 2014 · Q311 Mark

Which describes how substances in cigarette smoke increase the risk of developing atherosclerosis? 1 Carbon monoxide damages the endothelium of the arteries. 2 Nicotine makes platelets sticky. 3 Nicotine stimulates the release of adrenaline.

A1, 2 and 3

B1 and 3 only

C1 only

D2 only

✓ Correct answer

D: 2 only

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Topic: Transport in mammals, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, May/June 2014 Paper 1 Variant 2, question 31.

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