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3 marksThe Respiratory System

CSEC Human and Social Biology · May/June 2012 · Paper 2 · Question 1(a)

A diagram of the human respiratory system is shown.

Identify the structures labelled W, X and Y in Figure 1.

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Other parts of this question

  1. 1(b)Identify ONE feature of the location of the alveoli and TWO features of their structure that allow them to carry out their function efficiently.[3 marks]
  2. 1(c)(i)State the year in which the total number of smokers was the HIGHEST.[1 mark]
  3. 1(c)(ii)State the period in which there was the GREATEST increase in the total number of smokers.[1 mark]
  4. 1(c)(iii)Compare the pattern of smoking in men to that of women between 1990 and 2010.[2 marks]
  5. 1(c)(iv)Compare the pattern of lung cancer in females to that of smoking for females.[2 marks]
  6. 1(c)(v)Suggest ONE reason for the change in the pattern of smoking observed in men between 2000 and 2010.[1 mark]
  7. 1(c)(vi)Suggest TWO reasons for the pattern of smoking observed in females.[2 marks]

More practice: the rest of this paper · more The Respiratory System questions · all CSEC Human and Social Biology past papers