A-LevelBiologyTransport in mammals9700/12 · Oct/Nov 2015 · Q321 Mark

Which of the effects are caused by breathing in both carbon monoxide and nicotine from cigarette smoke? 1 increased heart rate 2 increased risk of cardiovascular disease 3 increased risk of emphysema 4 increased risk of lung cancer

A1, 2 and 3

B2, 3 and 4

C1 and 2 only

D3 and 4 only

✓ Correct answer

C: 1 and 2 only

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Topic: Transport in mammals, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2015 Paper 1 Variant 2, question 32.

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