A-LevelBiologyBiological molecules9700/12 · Oct/Nov 2014 · Q111 Mark

The diagram shows the structure of four amino acids in solution. [Figure 11] Which amino acids have no overall charge?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Aalanine and aspartate

Balanine and glycine

Caspartate and lysine

Dglycine and lysine

✓ Correct answer

B: alanine and glycine

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Topic: Biological molecules, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2014 Paper 1 Variant 2, question 11.

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