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3.1 Coordination and control – the nervous system

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Question 14

Two neurones, P and Q, meet at a synapse. Vesicles containing neurotransmitter are found only in the axon terminal of neurone P.

Which statement describes the direction in which an impulse can pass across this synapse?

[1]
A

An impulse can pass in either direction, because neurotransmitter can diffuse both ways across the gap.

B

An impulse can pass from neurone P to neurone Q, but not from neurone Q to neurone P.

C

An impulse can pass from neurone Q to neurone P, but not from neurone P to neurone Q.

D

No impulse can pass between the neurones, because an electrical impulse cannot cross the gap.

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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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