A-LevelBiologyEnzymesFeb/Mar 2024Paper 1 Q111 Mark
Many flowers produce a sweet solution called nectar. Bees provided with nectar use enzyme Q to change the nectar into honey. After testing a sample of nectar for the presence of reducing sugar using standard laboratory reagents, the sample was blue. After testing a sample of honey in the same way, the sample was orange. Which conclusion about the reaction catalysed by enzyme Q is consistent with these results?
Atype of reaction: condensation, substrate: maltose, product: glucose
Btype of reaction: condensation, substrate: sucrose, product: fructose
Ctype of reaction: hydrolysis, substrate: sucrose, product: fructose
Dtype of reaction: hydrolysis, substrate: maltose, product: glucose
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of enzymes 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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