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3.1 Coordination and control – the nervous system

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Question 3

Four structures take part in a coordinated nervous response.

Which statement describes a structure acting as an effector?

[1]
A

The structure carries an electrical impulse from a receptor into the CNS.

B

The structure detects a stimulus and converts it into an electrical impulse.

C

The structure secretes a substance after an impulse arrives from a motor neurone.

D

The structure carries an electrical impulse from the CNS towards a gland.

Markscheme

3.1 Coordination and control – the nervous system Questions

  1. GCSE
  2. /Biology
  3. /3.1 Coordination and control – the nervous system

135 exam-style questions on OCR GCSE Biology 3.1 Coordination and control – the nervous system, covering 3.1.1 Structure of the nervous system, 3.1.2 Coordinated response, 3.1.3 The reflex arc, 3.1.4 Structure of the eye, 3.1.5 Defects of the eye, 3.1.6 Structure and function of the brain, 3.1.7 Difficulties of investigating brain function, and 3.1.8 Limitations in treating nervous system damage. Each one has a worked solution and a mark scheme showing where the marks go.

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