A-LevelBiologyBiological molecules9700/12 · May/June 2012 · Q71 Mark

Glycogen is a polymer of glucose. Which description summarises its structure?

Aα-glucose joined by glycosidic bonds involving carbons 1 and 4

Bα-alpha glucose joined by glycosidic bonds involving carbons 1, 4 and 6

Cβ-beta glucose joined by glycosidic bonds involving carbons 1 and 4

Dβ-beta glucose joined by glycosidic bonds involving carbons 1, 4 and 6

✓ Correct answer

B: α-alpha glucose joined by glycosidic bonds involving carbons 1, 4 and 6

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Topic: Biological molecules, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, May/June 2012 Paper 1 Variant 2, question 7.

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