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A-LevelBiologyGas exchange9700/12 · Oct/Nov 2017 · Q361 Mark

In which regions of the human gas exchange system is the function of some types of cell directly affected by tar in cigarette smoke?

Abronchioles and alveoli only

Btrachea, bronchus, bronchioles, alveoli

Ctrachea and bronchus only

Dtrachea, bronchus and bronchioles only

✓ Correct answer

D: trachea, bronchus and bronchioles only

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About this question

Topic: Gas exchange, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2017 Paper 1 Variant 2, question 36.

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