A-LevelBiologyCell membranes and transport9700/12 · Oct/Nov 2013 · Q151 Mark

Which statements are descriptions of both facilitated diffusion and active transport? 1 moves substances against a concentration gradient 2 requires ATP 3 transports charged ions across the cell surface membrane 4 uses proteins

A1, 2, 3 and 4

B1, 2 and 4 only

C2 and 3 only

D3 and 4 only

✓ Correct answer

D: 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 2013 Paper 1 Variant 2, question 15.

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