CSEC Human and Social Biology · January 2011 · Paper 2 · Question 9(a)(ii)
Name TWO methods of sterilizing food or other materials.
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Practise this questionOther parts of this question
- 9(a)(i)What is meant by the term 'sterilization'?[1 mark]
- 9(b)(i)Suggest the effect of chlorine bleach on drinking water.[1 mark]
- 9(b)(ii)Explain the function of chlorination in large-scale water purification.[2 marks]
- 9(c)(i)Explain how artificial passive immunity protects the individual.[2 marks]
- 9(c)(ii)Outline TWO differences between artificial passive immunity and artificial active immunity.[2 marks]
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