Quelpr
2 marksRespiration and Air Pollution

CSEC Integrated Science · May/June 2013 · Paper 2 · Question 1(c)(ii)

On the uphill part of the route, Ricki's leg muscles produce lactic acid during respiration.

Write a word equation for the process of respiration that involves oxygen.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 1(a)(i)Describe how Ricki's chest (intercostal) muscles and ribcage operate to cause inhalation and exhalation of air.[2 marks]
  2. 1(a)(ii)Suggest how his breathing rate changes as he runs up the hill.[1 mark]
  3. 1(a)(iii)Give a reason for the suggested change in breathing rate while running uphill.[1 mark]
  4. 1(a)(iv)Explain how the movement of Ricki's diaphragm allows him to breathe in when singing or engaging in strenuous activity.[3 marks]
  5. 1(b)(i)State ONE difference between the air that Ricki inhales and the air that he exhales.[1 mark]
  6. 1(b)(ii)State a second difference between the air that Ricki inhales and the air that he exhales.[1 mark]
  7. 1(c)(i)State the term used to describe this type of respiration.[1 mark]
  8. 1(c)(iii)Name ONE nutrient Ricki can use to provide sufficient energy for his exercise.[1 mark]
  9. 1(d)(i)Using Figure 1 on page 5, which shows data for non-smokers, plot a graph to represent the data for tobacco smokers from Table 1.[5 marks]
  10. 1(d)(ii)Label the axes on the graph in Figure 1.[2 marks]
  11. 1(d)(iii)State an appropriate title for the graph.[1 mark]
  12. 1(d)(iv)According to the trends in the graphs, at what age did the SAME number of smokers and non-smokers die?[1 mark]
  13. 1(d)(v)From the graph, determine the age at which 250 non-smokers will die.[1 mark]
  14. 1(d)(vi)Based on the trends shown in the graphs, state what can be concluded about the effect of smoking tobacco on life expectancy.[1 mark]
  15. 1(d)(vii)State ONE likely difference between the lungs of smokers and the lungs of non-smokers.[1 mark]

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