A-LevelBiologyCell membranes and transport9700/12 · Oct/Nov 2012 · Q171 Mark

Which processes that move substances across cell surface membranes result in an exchange? 1 active transport 2 diffusion 3 facilitated diffusion 4 osmosis

A1, 2 and 3 only

B1, 2 and 4 only

C1, 3 and 4 only

D2, 3 and 4 only

✓ Correct answer

D: 2, 3 and 4 only

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Topic: Cell membranes and transport, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2012 Paper 1 Variant 2, question 17.

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