Mastering Microbial Growth
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Questions and Answers

Which one of these is the most effective against endospores?

  • Sterilization (correct)
  • Antisepsis
  • Disinfection
  • Sanitization

    • Which one of these is NOT a factor that influences the effectiveness of agents used to control microbial populations?

  • Color (correct)
  • Temperature
  • pH
  • Humidity

    • Which one of these is a physical agent used to control microbial populations?

  • Antiseptic
  • Disinfectant
  • Antibiotic
  • Radiation (correct)

    • Which one of these is NOT a procedure used to evaluate the effectiveness of antimicrobial agents?

    <p>Microbial growth curve</p> Signup and view all the answers

    Which one of these is used for disinfection and is usually applied to inanimate objects?

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

    Which one of these is true about sanitization?

    <p>Sanitization is the reduction of microbial population to levels deemed safe.</p> Signup and view all the answers

    Which one of these is true about antiseptics?

    <p>Antiseptics are chemical agents that kill or inhibit growth of microorganisms when applied to tissue.</p> Signup and view all the answers

    Which one of these is true about alcohols, hydrogen peroxide, and others?

    <p>They can be antiseptic, disinfectants, sanitizers, or sterilants depending on concentration, length of exposure, and delivery method.</p> Signup and view all the answers

    Which one of these is true about -cidal agents?

    <p>-cidal agents indicate that they kill microorganisms.</p> Signup and view all the answers

    Which one of these is true about the Pattern of Microbial Death?

    <p>Population death occurs exponentially.</p> Signup and view all the answers

    Which one of these is true about the response to temperature?

    <p>Heat shock response helps keep proteins from denaturing.</p> Signup and view all the answers

    Which of the following is NOT a factor that affects water activity for bacteria?

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

    Which of the following pH ranges is suitable for acidophiles to grow?

    <p>pH 0 - 5</p> Signup and view all the answers

    Which type of microorganism uses oxygen as the ultimate electron acceptor?

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

    What is the temperature and time required for flash pasteurization?

    <p>72°C for 15 seconds</p> Signup and view all the answers

    Which of the following physical agents is effective against all types of microorganisms, including spores?

    <p>Steam sterilization</p> Signup and view all the answers

    What is the purpose of using an autoclave for steam sterilization?

    <p>To kill all bacteria and endospores</p> Signup and view all the answers

    Which of the following chemical agents can be used inside patients?

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

    What is the main effect of penicillin on bacteria?

    <p>Blocking cell wall synthesis</p> Signup and view all the answers

    Lyme Disease also known as Barelia burgdorferi which statement is not correct about it.

    <p>To protect yourself from ticks the only way is not going out into long grasses.</p> Signup and view all the answers

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