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2 marksThe Respiratory System

CSEC Human and Social Biology · January 2009 · Paper 2 · Question 5(c)(ii)

During a sprint race, an athlete relies on both aerobic and anaerobic respiration.

Explain why anaerobic respiration takes place after aerobic respiration during intense exertion in the athlete's body.

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Other parts of this question

  1. 5(a)(i)Name the structure labelled X in Figure 3.[1 mark]
  2. 5(a)(ii)Name the structure labelled Y in Figure 3.[1 mark]
  3. 5(b)Define the term 'vital capacity'.[1 mark]
  4. 5(c)(i)Explain the biological processes of aerobic respiration and anaerobic respiration that take place during the sprint.[5 marks]

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