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1 markNutrition and the Digestive System

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

Figures 2 and 3 show the rate of reaction of amylase over a range of temperatures and pH.

Suggest what effect temperatures GREATER than 55 °C would have on enzymes.

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Other parts of this question

  1. 3(a)(i)Give the names of TWO enzymes associated with digestion in humans, and state ONE function of EACH enzyme named.[4 marks]
  2. 3(a)(ii)Name the type of digestion for which the teeth in the mouth are responsible.[1 mark]
  3. 3(a)(iii)State which type of tooth is MAINLY responsible for the type of digestion named in (a)(ii).[1 mark]
  4. 3(b)(i)At approximately which temperature and pH does amylase function the BEST?[2 marks]
  5. 3(c)(i)Explain the role of the pancreas in the development of diabetes mellitus resulting from consumption of excessive carbohydrates and fats.[4 marks]
  6. 3(c)(ii)Suggest TWO methods, other than the use of medication, which could be used to manage diabetes mellitus.[2 marks]

More practice: the rest of this paper · more Nutrition and the Digestive System questions · all CSEC Human and Social Biology past papers