A-LevelBiologyBiological molecules9700/12 · May/June 2018 · Q111 Mark
Which row describes a collagen molecule?
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Abonds stabilising the molecule disulfide, properties high temperatures increase flexibility, primary structure high proportion of glycine, helix double
Bbonds stabilising the molecule disulfide, properties resistant to stretching, primary structure repeat sequences of three amino acids, helix single
Cbonds stabilising the molecule hydrogen, properties high tensile strength, primary structure repeat sequences of three amino acids, helix triple
Dbonds stabilising the molecule hydrogen, properties insoluble in water, primary structure high proportion of glycine and proline, helix alpha
✓ Correct answer
C: bonds stabilising the molecule hydrogen, properties high tensile strength, primary structure repeat sequences of three amino acids, helix triple
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