A-LevelBiologyEnzymes9700/12 · Feb/Mar 2024 · 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
C: type of reaction: hydrolysis, substrate: sucrose, product: fructose
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