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2.3 The nervous system and brain

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Question 31

An irritant in an airway causes a person to cough automatically.

Each statement describes the reflex arc that produces this cough.

Statement J: the receptor is the first part of the reflex arc to respond to the irritant.

Statement K: the relay neurone involved remains entirely within the brain.

Statement L: the motor neurone carries an impulse from the contracting muscles towards the central nervous system.

Which statements are correct?

[1]
A

J only

B

K only

C

J and K only

D

K and L only

Markscheme

2.3 The nervous system and brain Questions

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

111 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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