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2 marksExcretion and Osmoregulation

CSEC Biology · May/June 2013 · Paper 2 · Question 3(b)(ii)

The kidneys excrete urea and water in the form of urine.

Use arrows on the diagram in Figure 3 to show the pathway taken by urine on its way out of the male's body.

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Other parts of this question

  1. 3(a)Name TWO metabolic waste products excreted by plants.[2 marks]
  2. 3(b)(i)Name the parts labelled A, B and C in Figure 3.[3 marks]
  3. 3(c)(i)Explain how ONE structure in Figure 3 can be manipulated to achieve permanent sterility in males.[2 marks]
  4. 3(c)(ii)Explain how tubal ligation results in sterility in females.[2 marks]
  5. 3(d)Explain TWO ways in which this method of reproduction is different from reproduction in humans.[4 marks]

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