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2.3 The nervous system and brain

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Question 9
F

In an investigation, only the motor neurone in a withdrawal reflex arc is prevented from carrying impulses. All other parts work normally.

What happens when the receptor is stimulated?

[1]
A

impulses reach the spinal cord, but the muscle does not contract

B

impulses cannot reach the spinal cord, but the muscle contracts

C

impulses cannot reach the spinal cord, and the muscle does not contract

D

impulses reach the spinal cord, and the muscle contracts normally

Markscheme

2.3 The nervous system and brain Questions

  1. GCSE
  2. /Biology
  3. /2.3 The nervous system and brain

43 exam-style questions on Edexcel GCSE Biology 2.3 The nervous system and brain, covering 2.3.1 Structures and functions of the brain, 2.3.2 Imaging brain function with scanning, 2.3.3 Limitations in treating nervous system damage, 2.3.4 Neurones and impulse transmission, and 2.3.5 Structure and function of a reflex arc. Each one has a worked solution and a mark scheme showing where the marks go.

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