Infectious Diseases Module 7 Exam

37 marks – 1 hour

Questions.

Question 1.

i) Evaluate Pasteur’s contribution to our modern understanding of infectious diseases. [6 marks]

ii) Evaluate Koch’s contribution to our modern understanding of infectious diseases. [6 marks]

Question 2.

i) How would you increase the validity of the model used in class to demonstrate the findings of Pasteur? [3 marks]

ii) How would you increase the reliability of the model used in class to demonstrate the findings of Pasteur? [3 marks]

Question 3.

Explain why the reaction rate of the immune response is typically greater for someone who is exposed to a pathogen for the second time. [3 marks]

Question 4.

What aseptic techniques were required/ used for the testing of water for pathogens practical? [2 marks]

Question 5.

Outline some of the limitations of modelling Pasteur’s experiment. [2 marks]

Question 6.

Explain briefly the three layers of defence the human body has against pathogens. [3 marks]

Question 7.

Explain what the key concern would be for microbiologists who have sterilized sewage water to be consumed by the people living in the city. [2 marks]

Question 8.

Explain why molecular biology questions typically have, making reference to the water microbe testing practical:

  • A control [2 mark]
  • Controlled variables [1 mark]
  • Independent variables [2 mark]
  • Dependent variables [2 mark]

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