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7 marksTransport Systems

CSEC Biology · January 2009 · Paper 2 · Question 5(b)(i)

Persons suffering from sickle-cell anaemia and iron-deficiency anaemia display similar symptoms because the oxygen-carrying capacity of the blood is reduced.

Identify TWO likely symptoms of persons suffering from anaemia.

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Other parts of this question

  1. 5(a)(i)Describe the process of respiration in living cells.[6 marks]
  2. 5(a)(ii)How do the cells in the human body obtain the raw materials for respiration?[1 mark]
  3. 5(b)(ii)a)How is the oxygen-carrying capacity of the blood reduced by sickle-cell anaemia?[1 mark]
  4. 5(b)(ii)b)How is the oxygen-carrying capacity of the blood reduced by iron-deficiency anaemia?[1 mark]
  5. 5(b)(iii)Suggest TWO ways of treating persons suffering from iron-deficiency anaemia.[1 mark]
  6. 5(c)Suggest ONE reason why some persons with diseases have higher than normal numbers of white blood cells.[2 marks]

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