Biology of Sterilization

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Questions and Answers

Which microorganisms are used as biological indicators (BIs)?

  • Spore-forming microbes in an active state
  • Gram-negative bacteria
  • Non-spore-forming microbes
  • Gram-positive bacteria (correct)

Biological indicators are preparations of microorganisms that have resistance to being killed during sterilization.

  • False
  • True (correct)

What is the purpose of using spore-forming microorganisms as biological indicators (BIs)?

  • To represent the actual bioburden on items to be sterilized (correct)
  • To make the sterilization process faster
  • To make the sterilization process easier
  • To make the sterilization process more difficult

If a sterilization process can destroy the bioburden of a product represented entirely as spores, it is considered effective.

<p>True (A)</p> Signup and view all the answers

Why are spore-forming microorganisms used as biological indicators (BIs)?

<p>Because they are more resistant to being killed during sterilization (C)</p> Signup and view all the answers

Which of the following statements about biological indicators (BIs) is true?

<p>BIs are more difficult to kill during sterilization than non-spore-forming microbes. (C)</p> Signup and view all the answers

Why are spore-forming microorganisms used as biological indicators (BIs)?

<p>They are more difficult to kill during sterilization than non-spore-forming microbes. (A)</p> Signup and view all the answers

What is the purpose of using biological indicators (BIs) during sterilization?

<p>To determine the effectiveness of the sterilization process. (B)</p> Signup and view all the answers

Why are spore-forming microorganisms used as biological indicators (BIs) instead of non-spore-forming microbes?

<p>Spore-forming microbes are easier to kill during sterilization. (B)</p> Signup and view all the answers

What is the significance of using spore-forming microorganisms as biological indicators (BIs)?

<p>They are more difficult to kill during sterilization than non-spore-forming microbes. (B)</p> Signup and view all the answers

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