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O-LevelBiologyEnzymes5090/11 · May/June 2011 · Q41 Mark

A dish is filled with agar jelly containing starch. Four holes are cut in the jelly and each hole is filled as shown. After 30 minutes, which hole will be surrounded by the largest area without starch?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

AA

BB

CC

DD

✓ Correct answer

A: A

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About this question

Topic: Enzymes, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2011 Paper 1 Variant 1, question 4.

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