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3.1 Coordination and control – the nervous system

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Question 22

Which part of the eye controls the amount of light entering the pupil by contracting or dilating?

A

Cornea

B

Iris

C

Lens

D

Retina

Markscheme

3.1 Coordination and control – the nervous system Questions

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

39 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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