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1 markSubstance Abuse

CAPE Biology Unit 2 · 2007 · Paper 2 · Question 3(a)(iii)

Figure 4 displays the cumulative increase in risk (%) for developing lung cancer among men relative to the age they stopped smoking.

Determine the difference in risk at age 65 between those who stopped smoking at age 30 compared with those who stopped smoking at age 50.

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Other parts of this question

  1. 3(a)(i)a)Identify which group has the HIGHEST cumulative risk at age 75.[1 mark]
  2. 3(a)(i)b)Identify which group has the LOWEST cumulative risk at age 75.[1 mark]
  3. 3(a)(ii)State the age at which all men in this study are considered to have a cumulative risk of zero.[1 mark]
  4. 3(a)(iv)Suggest how the failure of 50-year-old men in 2007 to quit smoking will affect their risk of developing lung cancer in 2027 compared with men who never smoked.[2 marks]
  5. 3(b)Design a precise experiment and describe the measurements you would take to determine which group is the fittest in terms of pulse rate (P), blood pressure…[4 marks]

More practice: the rest of this paper · more Substance Abuse questions · all CAPE Biology Unit 2 past papers