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2 marksImmunology

CAPE Biology Unit 2 · May/June 2021 · Paper 2 · Question 3(a)(i)

Monoclonal antibodies are used in early pregnancy testing. Figure 5 shows a home pregnancy test kit strip with three reaction areas.

Define the term 'monoclonal antibody'.

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Other parts of this question

  1. 3(a)(ii)Identify the areas labelled I-III in Figure 5, on page 16, where Reactions A, B and C in Figure 6 occur.[3 marks]
  2. 3(a)(iii)Outline the processes which would occur in EACH labelled area in Figure 5, on page 16, if the pregnancy test is positive.[5 marks]
  3. 3(b)(i)On the grid provided on page 19, construct a bar graph based on the data provided in Table 1.[5 marks]
  4. 3(b)(ii)State TWO conclusions which can be drawn from the data in Table 1.[2 marks]
  5. 3(b)(iii)Suggest ONE measure that would be effective in reducing the prevalence of cigarette smoking.[1 mark]
  6. 3(c)Discuss THREE ways in which the nicotine in cigarette smoke can lead to the development of cardiovascular diseases.[12 marks]

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