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3 marksReproduction in Plants

CAPE Biology Unit 1 · May/June 2024 · Paper 2 · Question 3(b)(ii)

Male gamete formation and pollen germination.

Figure 6 shows the first of a sequence of events that occurs from pollination to fertilization in plants. Explain the importance of the pollen tube in fertilization.

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Other parts of this question

  1. 3(a)(i)Identify the structures labelled U, V and W on the young ovule in Figure 5.[3 marks]
  2. 3(a)(ii)Describe EACH of the processes labelled X and Y in Figure 5.[4 marks]
  3. 3(a)(iii)On the diagram in Figure 5 on page 20, complete the diagram by drawing the nuclei in their correct positions in the developed embryo sac represented at Z.[3 marks]
  4. 3(b)(i)Draw a diagram of the germinating lily pollen shown in Figure 6 in the space provided.[5 marks]
  5. 3(c)Discuss how the structure of the human placenta enables it to carry out its functions of protection, production and transport. Present your response in…[12 marks]

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