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2 marksNutrition and the Digestive System

CSEC Human and Social Biology · May/June 2011 · Paper 2 · Question 2(b)(iii)

A diagram shows part of the human alimentary tract.

Suggest TWO ways amino acids benefit the body.

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Other parts of this question

  1. 2(a)(i)List TWO vitamins (excluding vitamin A) and ONE mineral that might be lacking in her diet.[3 marks]
  2. 2(a)(ii)Name one water-soluble vitamin.[1 mark]
  3. 2(a)(iii)Name ONE nutrient other than a vitamin or mineral whose deficiency could cause her weakness and fatigue.[1 mark]
  4. 2(a)(iv)Identify the end-product of digestion for the nutrient named in (a)(iii).[1 mark]
  5. 2(b)(i)State ONE function of each organ labelled A and B in Figure 3.[2 marks]
  6. 2(b)(ii)Describe how proteins are digested in the stomach and in the small intestine.[5 marks]

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