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3 marksImmunology

CAPE Biology Unit 2 · 2014 · Paper 2 · Question 3(b)(ii)

Figure 5 shows the steps involved in the phagocytic process in macrophages.

Outline how a macrophage may act as an antigen-presenting cell.

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Other parts of this question

  1. 3(a)(i)On the grid provided, draw line graphs of the data in Table 1 for Africa and Asia.[5 marks]
  2. 3(a)(ii)Compare the trend in percentage of overweight and obesity for Africa with that of Latin America and the Caribbean, over the period 1990-2010.[2 marks]
  3. 3(a)(iii)Suggest TWO key strategies which may be effective in reducing or preventing obesity in pre-school children.[2 marks]
  4. 3(b)(i)On Figure 5, use annotations to describe the steps labelled 1, 2 and 3.[3 marks]

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