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3 marksSexual Reproduction in Humans

CAPE Biology Unit 1 · 2011 · Paper 2 · Question 3(b)(i)

Figure 3 is a drawing of a mature human spermatozoon, with a head length of 2.5 μm indicated.

Calculate the actual length of the spermatozoon. Show the steps in your calculation.

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Other parts of this question

  1. 3(a)(i)Identify the structures labelled A, B and C in Figure 2.[3 marks]
  2. 3(a)(ii)State the function of EACH of the structures labelled X and Y.[2 marks]
  3. 3(b)(ii)With reference to Figure 3, describe TWO ways in which a mature spermatozoon differs from an ovum.[2 marks]
  4. 3(c)(i)In the box below, draw and label a plan diagram of the section shown in Figure 4 as identified by the two lines in the lower part of the figure. Make your…[4 marks]
  5. 3(c)(ii)Name the next stage in the development of the highlighted section in Figure 4.[1 mark]

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