Microbiology: Microbe Removal Processes
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Questions and Answers

Which process removes or destroys all microbes, including endospores?

  • Disinfection
  • Sterilization (correct)
  • Sanitization
  • Antisepsis
  • Which of the following processes can disrupt protein structure and function? (Select all that apply)

  • Denaturation due to heat (correct)
  • Hydration of proteins
  • Chemical modification such as phosphorylation (correct)
  • Formation of peptide bonds
  • What is intermittent sterilization?

  • A method using continuous heat to sterilize
  • A technique that alternates between heating and cooling to kill microbes (correct)
  • A chemical sterilization method
  • A process that only targets bacteria but not viruses
  • Which cellular targets are affected by detergents?

    <p>Cell membranes</p> Signup and view all the answers

    Which of the following are microbicidal agents that lower the surface tension of the membrane and disrupt it?

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

    Which term refers to the ability of microbes to withstand heat?

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

    Which methods are effective for microbial removal through ionizing and non-ionizing radiation? (Select all that apply)

    <p>Using bleach solution</p> Signup and view all the answers

    What bacterial form is the most resistant to microbial control methods?

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

    Which of the following chemicals is known to kill bacteria?

    <p>All of the above</p> Signup and view all the answers

    Which device sterilizes objects by exposing them to steam under pressure?

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

    Which cleansing technique is known for removing debris, microbes, and toxins?

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

    The process of [blank] is used for preserving by freezing and drying samples.

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

    Applying heat to liquids to remove spoilage and infectious agents is known as [blank].

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

    Practices that prevent entry of microbes into sterile tissues and prevent infection are known as [blank]

    <p>aseptic techniques</p> Signup and view all the answers

    Radiation that breaks the sugar phosphate backbone of DNA is called [blank].

    <p>ionizing radiation</p> Signup and view all the answers

    Chemical agents that are used directly on living tissues to decontaminate are called [blank].

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

    Compound all chemicals are compared against when rating their effectiveness is _____.

    <p>each other</p> Signup and view all the answers

    Which of the following agents are known to stop fungal growth?

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

    Chlorine and iodine are examples of [blank] agents used in disinfection.

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

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