Quelpr
1 markSexual Reproduction in Humans

CAPE Biology Unit 1 · 2008 · Paper 2 · Question 3(c)(ii)

Table 4 shows the results of an experiment investigating the influence of sperm velocity on fertilisation in the freshly diluted sperm of the sea urchin, Lytechinus variegatus.

Suggest a likely conclusion from the findings of this experiment.

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Other parts of this question

  1. 3(a)(i)State FOUR structural differences observed between the ovum and the sperm.[4 marks]
  2. 3(a)(ii)Based on features observed, comment, using two points, on how the ovum and the sperm are suited to their respective functions.[4 marks]
  3. 3(b)Explain why some scientists regard the ovum at the stage shown in Figure 3, to be a secondary oocyte.[2 marks]
  4. 3(c)(i)On the graph grid on page 11, plot a graph to show the relationship between sperm velocity and fertilisation.[4 marks]

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