Mastering Microbial Control
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Questions and Answers

What does the thermal death point (TDP) of a microorganism refer to?

  • The temperature at which a microorganism begins to reproduce
  • The lowest temperature at which all microbes are killed in a 10-minute exposure (correct)
  • The temperature at which a microorganism's proteins are denatured
  • The highest temperature a microorganism can survive
  • Which of the following microorganisms is more heat tolerant?

  • Staphylococcus
  • Salmonella
  • C. botulinum (correct)
  • E. coli
  • What does the thermal death time (TDT) refer to?

  • The time it takes for a microorganism's proteins to denature at a given temperature
  • The time it takes for a microorganism to reproduce at a given temperature
  • The time it takes for a microorganism to die at its thermal death point
  • The length of time needed to kill all microorganisms in a sample at a given temperature (correct)
  • What are inanimate items that may harbor microbes and aid in disease transmission called?

    <p>Fomites</p> Signup and view all the answers

    What are the two factors that influence the level of cleanliness required for a particular fomite?

    <p>The application for which the item will be used and the level of resistance to antimicrobial treatment by potential pathogens</p> Signup and view all the answers

    Why is the bacterium Clostridium botulinum often found in canned foods?

    <p>Because it can produce endospores that can survive harsh conditions</p> Signup and view all the answers

    What is the primary reason for controlling the growth of microbes on frequently used items by humans?

    <p>To prevent the spread of human diseases</p> Signup and view all the answers

    What determines the level of cleanliness required for a particular fomite?

    <p>The application for which the item will be used and the level of resistance to antimicrobial treatment by potential pathogens</p> Signup and view all the answers

    Why is the bacterium Clostridium botulinum often associated with food contamination in canned foods?

    <p>Because it can produce endospores that can survive harsh conditions</p> Signup and view all the answers

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