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2 marksRespiration and Air Pollution

CSEC Integrated Science · 2005 · Paper 2 · Question 1(a)(ii)

Figure 1 illustrates two models (A and B) representing the human respiratory system.

Provide one reason for your answer in (a)(i).

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Other parts of this question

  1. 1(a)(i)State which model, A or B, better represents the human respiratory system.[1 mark]
  2. 1(a)(iii)a)State which part of the human respiratory system is represented by the balloons in Model B.[1 mark]
  3. 1(a)(iii)b)State which part of the human respiratory system is represented by the rubber in Model B.[1 mark]
  4. 1(a)(iv)Explain whether the volume of air inside the bell jar changes when the thumb in Model B is removed and the rubber flattens.[2 marks]
  5. 1(a)(v)Identify whether inhalation or exhalation is demonstrated by the bell jar model in Figure 1, giving one reason for your answer.[3 marks]
  6. 1(b)(i)Determine the percentage of the population at location A with severe bronchitis using Figure 2.[1 mark]
  7. 1(b)(ii)Identify which location (A, B, C, or D) is least affected by severe bronchitis.[1 mark]
  8. 1(b)(iii)Suggest which location (A, B, C, or D) is most likely situated near a large cement factory.[1 mark]
  9. 1(b)(iv)Give two reasons supporting your suggestion in (b)(iii).[2 marks]

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