Compare5 marksChallenge
Haemoglobin transports oxygen in the blood, while collagen provides structural support in connective tissues. Compare the structures of these two proteins and explain how their structural features relate to their functions.
CAIE A Level Biology 9700 · Biological molecules
Biological molecules: compare question
How this question is marked
5 marks, so the mark scheme is looking for about 5 separate creditworthy points. Making the same point twice in different words earns it once.
Compare means: Give similarities or differences between two things, and say which side each point belongs to. Write each point as a pair, for example: A is X, whereas B is Y. Two separate descriptions rarely earn the marks.
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