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O-LevelBiologyEnzymes5090/11 · May/June 2012 · Q41 Mark

Starch is digested to maltose by the enzyme amylase. According to the 'lock and key' hypothesis, which is the 'key' and which is the 'lock'?

Aamylase maltose

Bamylase starch

Cstarch amylase

Dstarch maltose

✓ Correct answer

C: starch amylase

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About this question

Topic: Enzymes, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2012 Paper 1 Variant 1, question 4.

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