A-LevelBiologyBiological molecules9700/12 · May/June 2017 · Q91 Mark

The diagram shows the results of tests on four solutions containing biological molecules. Which shows the solution that contains only starch and protein? [Venn diagram showing intersections of 'biuret test, purple', 'iodine test, blue black', 'Benedict's test, orange' with regions A, B, C, D]

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✓ Correct answer

D: D

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Topic: Biological molecules, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, May/June 2017 Paper 1 Variant 2, question 9.

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