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2 marksExcretion and Osmoregulation

CSEC Biology · May/June 2011 · Paper 2 · Question 5(a)

The kidney is an important excretory organ in mammals.

Name TWO substances excreted by the kidney.

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Other parts of this question

  1. 5(b)With the aid of an annotated diagram, explain how urine is formed in the human kidney.[9 marks]
  2. 5(c)An analysis of a sample of urine shows the presence of blood cells and glucose. Account for the presence of these substances in the urine.[4 marks]

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