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O-LevelBiologyCoordination & Response5090/11 · May/June 2011 · Q231 Mark

What are the functions of the relay, motor and sensory neurones in a reflex response?

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Ato connect neurones within the central nervous system to conduct impulses to the effector from the central nervous system to conduct impulses from the receptor to the central nervous system
Bto conduct impulses to the effector to connect neurones within the central nervous system to receive the stimulus
Cto conduct impulses from the central nervous system to the effector to conduct impulses from the receptor to the central nervous system to connect neurones within the central nervous system
Dto conduct impulses from the receptor to the central nervous system to conduct impulses to the effector

✓ Correct answer

A: to connect neurones within the central nervous system to conduct impulses to the effector from the central nervous system to conduct impulses from the receptor to the central nervous system

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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 2011 Paper 1 Variant 1, question 23.

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