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Microbiology Growth Media Quiz
8 Questions
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Microbiology Growth Media Quiz

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Questions and Answers

Why are solid agar-based media commonly used in laboratories for growing bacteria?

  • To prevent bacteria from reproducing indefinitely
  • To measure growth accurately
  • To make it easy to transfer cultures
  • To identify colonial characteristics and isolate pure cultures (correct)

    • What characteristic of growth in stirred liquid media makes cultures easy to divide and transfer?

  • Enhanced bacterial motility
  • Decreased nutrient levels
  • Even cell suspension (correct)
  • Increased reproduction rate

    • Why is isolating single bacteria from liquid media difficult?

  • Bacteria form biofilms in liquid media
  • Bacteria grow too slowly in liquid media
  • Bacteria reproduce indefinitely in liquid media
  • Bacteria are not easily distinguishable in liquid media (correct)

    • How can the use of selective media assist in identifying specific organisms?

    <p>By inhibiting the growth of unwanted organisms</p> Signup and view all the answers

    What type of environmental moisture is optimum for cultivating bacteria?

    <p>Moist environment</p> Signup and view all the answers

    At what temperature is the cultivation of bacteria of medical importance most optimal?

    <p>$37°C$</p> Signup and view all the answers

    Why is it important to use high levels of nutrients in laboratory techniques for growing bacteria?

    <p>To produce large amounts of cells quickly and inexpensively</p> Signup and view all the answers

    Why do saprophytic bacteria have the ability to grow at lower temperatures?

    <p>They can use alternative energy sources</p> Signup and view all the answers

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