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A-LevelBiologyBiological molecules9700/12 · Oct/Nov 2024 · Q141 Mark

Phospholipids are formed in a similar way to triglycerides. A sample contained six phospholipid molecules. • The molecular weight of a phosphate ion is 95 g mol⁻¹. • The molecular weight of each individual fatty acid in this sample was found to be 282 g mol⁻¹. • The molecular weight of glycerol is 92 g mol⁻¹. • The molecular weight of water is 18 g mol⁻¹. What is the molecular weight of the sample in g mol⁻¹?

A2598
B4182
C4506
D4830

✓ Correct answer

B: 4182

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About this question

Topic
Biological molecules, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source
A-Level Biology, Oct/Nov 2024 Paper 1 Variant 2, question 14.

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