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2 marksThe Respiratory System

CSEC Human and Social Biology · January 2018 · Paper 2 · Question 2(a)(i)

Breathing brings oxygen into the body and removes carbon dioxide.

Define the term 'vital capacity'.

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Other parts of this question

  1. 2(a)(ii)Name the instrument used to measure vital capacity.[1 mark]
  2. 2(b)List THREE factors which increase the rate and depth of breathing.[3 marks]
  3. 2(c)(i)Explain the difference between a depressant and a stimulant, and give ONE example of EACH.[4 marks]
  4. 2(c)(ii)Explain the difference between physical and psychological dependence on drugs.[2 marks]
  5. 2(c)(iii)Suggest THREE reasons why young people may start taking drugs.[3 marks]

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