A-LevelBiologyBiological molecules9700/12 · Feb/Mar 2022 · Q121 Mark

The general formula for a saturated fatty acid is CnH2nO2. Which of these fatty acids are unsaturated? 1 C10H19COOH 2 C15H31COOH 3 C17H31COOH 4 C18H32COOH

A1, 2 and 3

B1, 2 and 4

C1, 3 and 4

D2, 3 and 4

✓ Correct answer

C: 1, 3 and 4

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Topic: Biological molecules, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Feb/Mar 2022 Paper 1 Variant 2, question 12.

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