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3 marksReproduction in Plants

CAPE Biology Unit 1 · 2013 · Paper 2 · Question 3(c)

Figure 4 is a diagram of a section through a carpel of an angiosperm plant showing the process of double fertilization.

Comment on the fate of the structure labelled X and the structure labelled Y, which includes the ovule walls and the embryo sac and its contents.

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Other parts of this question

  1. 3(a)(i)Complete Table 4 with respect to the features listed for spermatogenesis and oogenesis in humans.[3 marks]
  2. 3(a)(ii)Outline the roles of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) in the regulation of spermatogenesis.[3 marks]
  3. 3(b)In the box below, make a plan drawing of the ovary to include the stage of the developing ovum just prior to release from the ovary.[6 marks]

More practice: the rest of this paper · more Reproduction in Plants questions · all CAPE Biology Unit 1 past papers