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Lyophilization and Food Preservation Quiz
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Lyophilization and Food Preservation Quiz

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Questions and Answers

What process is associated with chromosomal proteins called histones?

  • Binary fission (correct)
  • Transcription
  • Meiosis
  • Mitosis

    • Which type of cells have flagella over their entire surface?

  • Kingdom Protista (correct)
  • Prokaryotic cells
  • Algae and protozoa
  • Peritrichous bacteria

    • What is the function of glycocalyx?

  • Protective slimy material (correct)
  • Reproduction by binary fission
  • Movement of organisms
  • Method of staining in microscopy

    • Which staining method is used for observing living cells removed from an organism?

    <p>Supravital staining</p> Signup and view all the answers

    What color will gram-positive bacteria appear at the end of the Gram staining procedure?

    <p>Blue to purple</p> Signup and view all the answers

    Which step follows flooding the slide with iodine solution during the Gram staining procedure?

    <p>Decolorize with acetone</p> Signup and view all the answers

    "Hanging preparation" is particularly useful for studying the motility of:

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

    What is the main purpose of structural staining?

    <p>To observe endospores and capsules</p> Signup and view all the answers

    What does negative staining help contrast in diagnostic microscopy?

    <p>Thin specimen with opaque fluid</p> Signup and view all the answers

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