A-LevelBiologyBiological molecules9700/12 · Oct/Nov 2021 · Q111 Mark

Which molecules contain at least two double bonds?

Asaturated fatty acid, collagen and haemoglobin

Bcollagen and saturated fatty acid only

Chaemoglobin and collagen only

Dsaturated fatty acid and haemoglobin only

✓ Correct answer

C: haemoglobin and collagen only

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Topic: Biological molecules, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2021 Paper 1 Variant 2, question 11.

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