A-LevelBiologyGas exchange9700/12 · Oct/Nov 2010 · Q321 Mark

Which row correctly shows the areas of the respiratory tract that contain cartilage, epithelium), goblet cells and smooth muscle? cartilage cilia goblet cells smooth musc

Abronchiole, bronchus bronchiole, trachea bronchus, trachea bronchiole, trachea

Bbronchus, trachea bronchiole, bronchus bronchus, trachea bronchiole, trachea

Cbronchiole, trachea bronchus, trachea bronchiole, bronchus bronchus, trachea

Dbronchus, trachea bronchiole, bronchus, trachea bronchus, trachea bronchiole, bronchus, trachea

✓ Correct answer

D: bronchus, trachea bronchiole, bronchus, trachea bronchus, trachea bronchiole, bronchus, trachea

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Topic: Gas exchange, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2010 Paper 1 Variant 2, question 32.

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