A-LevelBiologyBiological molecules9700/12 · Oct/Nov 2021 · Q71 Mark

A student carried out four tests on a sample of biological molecules. [Table showing test and observation: emulsion cloudy, Benedict's yellow, biuret purple, iodine yellow] Which conclusions made by the student are correct? 1 Fat was present. 2 Glucose was present. 3 Protein was present. 4 Starch was not present.

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A1, 2, 3 and 4

B1, 2 and 4 only

C1, 3 and 4 only

D2 and 3 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, Oct/Nov 2021 Paper 1 Variant 2, question 7.

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