Outline4 marksStandard
Outline the fluid mosaic model of cell surface membranes. In your answer, describe the roles of phospholipids, cholesterol, and glycoproteins, and explain the difference between carrier proteins and channel proteins.
CAIE A Level Biology 9700 · Cell membranes and transport
Cell membranes and transport: outline question
How this question is marked
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Outline means: Give the main points briefly. Less detail than describe, but every key step has to be there. One short line per step, in order. The marks are for coverage, not depth.
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