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O-LevelBiologyCoordination & Response5090/11 · Oct/Nov 2012 · Q221 Mark

What happens in the eye when a person walks from a dark room into sunlight?

Arelax, contract, decreases
Brelax, contract, increases
Ccontract, relax, decreases
Dcontract, relax, increases

✓ Correct answer

C: contract, relax, decreases

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About this question

Topic
Coordination & Response, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, Oct/Nov 2012 Paper 1 Variant 1, question 22.

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