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O-LevelBiologyCoordination & Response5090/11 · May/June 2016 · Q221 Mark

What is an example of a reflex arc?

Aretina → motor neurone → relay neurone → sensory neurone → iris muscle
Bretina → motor neurone → sensory neurone → relay neurone → iris muscle
Cretina → sensory neurone → motor neurone → relay neurone → iris muscle
Dretina → sensory neurone → relay neurone → motor neurone → iris muscle

✓ Correct answer

D: retina → sensory neurone → relay neurone → motor neurone → iris muscle

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About this question

Topic
Coordination & Response, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, May/June 2016 Paper 1 Variant 1, question 22.

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