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3.1 Coordination and control – the nervous system

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Question 22

Which sequence shows the correct pathway of a nervous response to a stimulus during a reflex action?

A

stimulus→receptor→sensory neurone→relay neurone→motor neurone→effector→response\text{stimulus} \rightarrow \text{receptor} \rightarrow \text{sensory neurone} \rightarrow \text{relay neurone} \rightarrow \text{motor neurone} \rightarrow \text{effector} \rightarrow \text{response}stimulus→receptor→sensory neurone→relay neurone→motor neurone→effector→response

B

stimulus→receptor→motor neurone→relay neurone→sensory neurone→effector→response\text{stimulus} \rightarrow \text{receptor} \rightarrow \text{motor neurone} \rightarrow \text{relay neurone} \rightarrow \text{sensory neurone} \rightarrow \text{effector} \rightarrow \text{response}stimulus→receptor→motor neurone→relay neurone→sensory neurone→effector→response

C

receptor→stimulus→sensory neurone→relay neurone→motor neurone→response→effector\text{receptor} \rightarrow \text{stimulus} \rightarrow \text{sensory neurone} \rightarrow \text{relay neurone} \rightarrow \text{motor neurone} \rightarrow \text{response} \rightarrow \text{effector}receptor→stimulus→sensory neurone→relay neurone→motor neurone→response→effector

D

effector→motor neurone→relay neurone→sensory neurone→receptor→stimulus→response\text{effector} \rightarrow \text{motor neurone} \rightarrow \text{relay neurone} \rightarrow \text{sensory neurone} \rightarrow \text{receptor} \rightarrow \text{stimulus} \rightarrow \text{response}effector→motor neurone→relay neurone→sensory neurone→receptor→stimulus→response

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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