A-LevelBiologyCell membranes and transport9700/12 · Oct/Nov 2013 · Q131 Mark

Which is correct for components of a cell surface membrane? [Figure 13.1]

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Aincreases membrane fluidity: cholesterol, allows recognition of cell: glycoproteins

Bincreases membrane fluidity: glycolipids, allows recognition of cell: phospholipids

Cincreases membrane fluidity: glycoproteins, allows recognition of cell: glycolipids

Dincreases membrane fluidity: phospholipids, allows recognition of cell: cholesterol

✓ Correct answer

A: increases membrane fluidity: cholesterol, allows recognition of cell: glycoproteins

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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 13.

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