Quelpr
4 marksThe Circulatory and Lymphatic Systems

CSEC Human and Social Biology · January 2010 · Paper 2 · Question 4(c)

Lacy is suffering from a deficiency of iron.

Explain how an iron deficiency affects the transport of oxygen by red blood cells.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 4(a)Name the blood vessels labelled A, B, and C in Figure 3.[3 marks]
  2. 4(b)Explain why humans need a circulatory system to transport oxygen, while single-celled organisms like amoeba do not.[2 marks]
  3. 4(d)Suggest ONE sign or symptom which may result from a deficiency of iron.[1 mark]

More practice: the rest of this paper · more The Circulatory and Lymphatic Systems questions · all CSEC Human and Social Biology past papers