CSEC Integrated Science · 2008 · Paper 2 · Question 1(d)(iii)
Explain why anaerobic respiration might be necessary for this activity.
The mark scheme is shown once you've answered.
Practise this questionOther parts of this question
- 1(a)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…[2 marks]
- 1(b)Identify which activity in Figure 1 would result in the individual having the highest breathing rate.[1 mark]
- 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]
- 1(d)(i)State ONE difference between aerobic and anaerobic respiration.[1 mark]
- 1(d)(ii)State in which activity in Figure 1 anaerobic respiration plays a significant role.[1 mark]
- 1(d)(iv)Complete Table 1 by stating TWO likely differences between the air inhaled and exhaled by Susan during her activity.[2 marks]
- 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