A-LevelBiologyCell membranes and transport9700/12 · May/June 2024 · Q151 Mark

The diagram shows the entry of molecule X into a cell. [Diagram of molecule X entering a cell] Which row shows a property of molecule X and the effect of the concentration of ATP in the cytoplasm on the rate of entry of molecule X? [Table with columns 'property of molecule X', 'concentration of ATP in the cytoplasm']

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Anon-polar affects rate of entry of molecule X

Bnon-polar has no effect on rate of entry of molecule X

Cpolar affects rate of entry of molecule X

Dpolar has no effect on rate of entry of molecule X

✓ Correct answer

D: polar has no effect on rate of entry of molecule X

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Topic: Cell membranes and transport, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, May/June 2024 Paper 1 Variant 2, question 15.

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