Quelpr

Other parts of this question

  1. 9(a)(i)What is meant by the term 'sterilization'?[1 mark]
  2. 9(a)(ii)Name TWO methods of sterilizing food or other materials.[2 marks]
  3. 9(b)(i)Suggest the effect of chlorine bleach on drinking water.[1 mark]
  4. 9(b)(ii)Explain the function of chlorination in large-scale water purification.[2 marks]
  5. 9(c)(ii)Outline TWO differences between artificial passive immunity and artificial active immunity.[2 marks]

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