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2 marksThe Circulatory System of Mammals

CAPE Biology Unit 2 · May/June 2024 · Paper 2 · Question 3(c)(ii)

Table 5 shows the heart rate, stroke volume and cardiac output of two individuals.

Identify whether EACH individual is elite trained (performing at least one hour of daily intense aerobic activity) or untrained (engages in moderate aerobic activity occasionally), based on the values calculated in (c) (i).

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  1. 3(a)(i)Define the term 'immune response'.[2 marks]
  2. 3(a)(ii)Suggest TWO reasons why memory cells facilitate long-term immunity.[2 marks]
  3. 3(a)(iii)Using an annotated diagram ONLY, describe the entire sequence of events involved in either a humoral immune response OR a cell-mediated immune response. Your…[6 marks]
  4. 3(b)(i)On the grid provided on page 19, plot the data provided in Table 4 as a bar graph with weight (kg) on the x-axis.[5 marks]
  5. 3(b)(ii)State TWO key deductions based on the results of this study.[2 marks]
  6. 3(b)(iii)State ONE link between diabetes and diet.[1 mark]
  7. 3(c)(i)Complete Table 5 by calculating the missing values for Individual A and Individual B.[2 marks]
  8. 3(c)(iii)Discuss how the following improvements in cardiovascular health shown in Figure 6 impact cardiac output. You MUST present your response in complete paragraphs.…[8 marks]

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