A-LevelBiologyCell membranes and transport9700/12 · Oct/Nov 2014 · Q171 Mark

Some functions of molecules found in cell surface membranes are listed. 1 cell recognition 2 ion transport 3 maintaining fluidity 4 mechanical stability Which are functions of cholesterol?

A1 and 2

B1 and 4

C2 and 3

D3 and 4

✓ Correct answer

D: 3 and 4

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Topic: Cell membranes and transport, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2014 Paper 1 Variant 2, question 17.

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