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10 marksVectors, Microorganism Control and Immunity

CSEC Human and Social Biology · May/June 2009 · Paper 2 · Question 12(b)

Personal hygiene advice.

Provide advice on maintaining personal hygiene, including: TWO reasons for maintaining good personal hygiene, TWO methods of hand hygiene with reasons, and TWO methods of skin hygiene with reasons.

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Other parts of this question

  1. 12(a)(i)Explain what is meant by 'sterilization' in relation to microorganisms.[1 mark]
  2. 12(a)(ii)Name TWO processes that use heat to preserve milk.[2 marks]
  3. 12(a)(iii)State ONE method of sterilizing instruments used in a hospital.[1 mark]
  4. 12(a)(iv)Define what is meant by an 'antibiotic'.[1 mark]
  5. 12(c)(i)Explain how bacteria are transmitted to food when a housefly: a) feeds, b) walks, c) defecates.[3 marks]
  6. 12(c)(ii)Suggest TWO methods for controlling houseflies.[2 marks]

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