A-LevelBiologyBiological molecules9700/12 · May/June 2013 · Q111 Mark

Which molecules contain a carboxyl group? 1 amino acid 2 glycerol 3 saturated fatty acid 4 unsaturated fatty acid

A1 and 2 only

B3 and 4 only

C1, 3 and 4 only

D2, 3 and 4 only

✓ Correct answer

C: 1, 3 and 4 only

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Topic: Biological molecules, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, May/June 2013 Paper 1 Variant 2, question 11.

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