A-LevelBiologyBiological moleculesMay/June 2019Paper 1 Q91 Mark
Which features affect the tensile strength of collagen? 1 the helical structure of collagen chains 2 the small R group of the amino acids in collagen 3 the insoluble nature of collagen 4 the bonds between collagen molecules
A1, 2, 3 and 4
B1, 2 and 4 only
C1 and 3 only
D2, 3 and 4 only
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of biological molecules within the Biologysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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