A-LevelBiologyBiological molecules9700/12 · Oct/Nov 2009 · Q131 Mark
Which features of collagen result in it having high tensile strength? 1 covalent bonds form between adjacent molecules 2 each three-stranded molecule is held together by hydrogen bonds 3 every third amino acid in the polypeptide is small 4 the primary structure is held together by peptide bonds
A1 and 2
B1, 2 and 3
C1, 3 and 4
D2, 3 and 4
✓ Correct answer
B: 1, 2 and 3
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