A-LevelBiologyBiological molecules9700/12 · May/June 2016 · Q51 Mark

Which row shows the monomer and type of bond that form the polymer?

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Amonomer: α-glucose, type of bond: 1,4 only, polymer: starch

Bmonomer: α-glucose, type of bond: 1,4 and 1,6, polymer: amylopectin

Cmonomer: β-glucose, type of bond: 1,4 only, polymer: glycogen

Dmonomer: β-glucose, type of bond: 1,4 and 1,6, polymer: cellulose

✓ Correct answer

B: monomer: α-glucose, type of bond: 1,4 and 1,6, polymer: amylopectin

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Topic: Biological molecules, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, May/June 2016 Paper 1 Variant 2, question 5.

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