Understanding Solute Concentration Impact on Cells Quiz
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Questions and Answers

What physical agents are typically required to kill spores and thermophiles?

  • Low pressure and low temperature
  • High pressure and high temperature (correct)
  • Low pressure and high temperature
  • High pressure and low temperature
  • At what temperatures are refrigeration temperatures typically maintained for food preservation?

  • 12 to 16°C
  • 8 to 12°C
  • 4 to 8°C (correct)
  • 0 to 4°C
  • Which of the following physical agents is used only for surface sterilization?

  • Electron beams
  • Gamma rays
  • Ultraviolet light (correct)
  • Filtration
  • What do ethanol, iodine, and chlorine have in common as commercial disinfectants?

    <p>They damage proteins, lipids, and/or DNA</p> Signup and view all the answers

    What is the primary purpose of using gamma rays, electron beams, and X-rays in irradiation?

    <p>High penetrating power</p> Signup and view all the answers

    Why are refrigeration temperatures commonly used for food preservation?

    <p>To slow growth and preserve strains</p> Signup and view all the answers

    'Low temperatures slow growth and preserve strains' - which microbial agent does this statement refer to?

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

    'Gamma rays, electron beams, and X-rays have high penetrating power' - what is the significant feature of these agents mentioned?

    <p>'High penetrating power'</p> Signup and view all the answers

    'Refrigeration temperatures are used for food preservation' - what is the primary role of refrigeration temperatures in food storage?

    <p>'Slow growth and preserve strains'</p> Signup and view all the answers

    'Ethanol, iodine, and chlorine damage proteins, lipids, and/or DNA' - how do these substances function as disinfectants?

    <p>'Damage microbial components'</p> Signup and view all the answers

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