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6 marksThe Respiratory System

CSEC Human and Social Biology · January 2010 · Paper 2 · Question 13(c)

Suggest TWO factors, OTHER THAN illness, which may affect breathing rate, and explain how EACH factor causes an increase in blood carbon dioxide levels.

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Other parts of this question

  1. 13(a)(i)Identify the parts labelled A, B, and C in Figure 8.[3 marks]
  2. 13(a)(ii)What is meant by the term 'vital capacity'?[2 marks]
  3. 13(b)Outline the steps which should be taken immediately to resuscitate your friend.[6 marks]
  4. 13(d)Identify ONE sign of tuberculosis and TWO ways by which the disease is spread.[3 marks]

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