Quelpr
2 marksRespiration and Air Pollution

CSEC Integrated Science · 2008 · Paper 2 · Question 1(a)

Three individuals are depicted performing different activities: Samantha raking leaves in the garden, Susan in a 100 metres sprint race, and Sharon working at the computer.

Sequence the individuals in order of the energy required by their bodies when performing the activity for the same duration, from most energy required to least energy required.

This question uses a figure or table from the paper — you'll see it when you practise.

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Other parts of this question

  1. 1(b)Identify which activity in Figure 1 would result in the individual having the highest breathing rate.[1 mark]
  2. 1(c)Describe the breathing rate and chest movement expected during the activity for Samantha, Susan, and Sharon, referring to structures of the respiratory system.[6 marks]
  3. 1(d)(i)State ONE difference between aerobic and anaerobic respiration.[1 mark]
  4. 1(d)(ii)State in which activity in Figure 1 anaerobic respiration plays a significant role.[1 mark]
  5. 1(d)(iii)Explain why anaerobic respiration might be necessary for this activity.[1 mark]
  6. 1(d)(iv)Complete Table 1 by stating TWO likely differences between the air inhaled and exhaled by Susan during her activity.[2 marks]
  7. 1(e)With reference to Susan's activity, give a reason for ONE difference between inhaled and exhaled air.[1 mark]

More practice: the rest of this paper · more Respiration and Air Pollution questions · all CSEC Integrated Science past papers