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2 marksSexual Reproduction in Humans

CAPE Biology Unit 1 · 2012 · Paper 2 · Question 3(b)(ii)

Figure 5 is a diagrammatic representation of a section of the placenta of a mammal.

Comment on the MAIN function of the structure labelled E.

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Other parts of this question

  1. 3(a)(i)Complete Figure 4 to show the missing stages in the boxes labelled A and B.[2 marks]
  2. 3(a)(ii)Use an arrow labelled C to indicate on Figure 4 where meiosis occurs during the development of the embryo sac.[1 mark]
  3. 3(a)(iii)Use an arrow labelled D to indicate the location of the female gamete on Figure 4.[1 mark]
  4. 3(a)(iv)Angiosperms and mammals both produce haploid gametes. Comment on TWO OTHER ways in which sexual reproduction in angiosperms and mammals may be similar.[4 marks]
  5. 3(b)(i)Identify the structures labelled A, B, C, D, and E in Figure 5.[5 marks]

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