Quelpr
6 marksTransport Systems

CSEC Biology · January 2013 · Paper 2 · Question 6(a)(i)

A recent outbreak of swine flu was caused by the H1N1 virus. One prevention measure adopted by some countries was an immunization programme.

Distinguish between artificial immunity and natural immunity. In your answer, explain how artificial immunity and natural immunity protect the human body against infectious diseases.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 6(a)(ii)Suggest TWO disadvantages of immunization.[2 marks]
  2. 6(a)(iii)The H1N1 virus is spread through the air. Suggest TWO precautions, other than immunization, that an individual can take to avoid getting the disease.[2 marks]
  3. 6(b)(i)Name a pathogenic disease that is spread in a manner different from the H1N1 virus and suggest ONE measure that may be taken to control the spread of this…[2 marks]
  4. 6(b)(ii)How are the methods used in the control of the spread of viruses among crop plants similar to those used to control the spread of viruses among farm animals?[3 marks]

More practice: the rest of this paper · more Transport Systems questions · all CSEC Biology past papers