Bacterial Culture Media Quiz
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Questions and Answers

Which type of agar is specifically designed for isolating Pseudomonas aeruginosa?

  • Hektoen enteric agar
  • Mannitol salt agar
  • Cetrimide agar (correct)
  • Bile esculin agar
  • What is the primary purpose of Hektoen enteric agar?

  • Isolate fecal bacteria from the Enterobacteriaceae family (correct)
  • Detect halophiles that ferment mannitol
  • Isolate lactose-fermenting bacteria
  • Differentiate urinary tract bacteria
  • CLED agar is primarily used to differentiate which types of bacteria?

  • Lactose-fermenting and non-lactose fermenting bacteria (correct)
  • Enterococci and Streptococci
  • Halophilic and non-halophilic bacteria
  • Gram-positive and Gram-negative bacteria
  • Which agar is used to isolate Enterococci and group D Streptococci?

    <p>Bile esculin agar</p> Signup and view all the answers

    Mannitol salt agar is specifically effective in isolating which type of organisms?

    <p>Halophiles that ferment mannitol</p> Signup and view all the answers

    Study Notes

    Bacterial Culture Media

    • Bile esculin agar isolates Enterococci and group D Streptococci.

    • Cetrimide agar isolates Pseudomonas aeruginosa.

    • Cysteine-lactose electrolyte deficient (CLED) agar isolates and differentiates urinary tract bacteria. It inhibits Proetus species swarming, and differentiates lactose fermenters from non-lactose fermenters.

    • Hektoen enteric agar (HEA) isolates and recovers fecal bacteria of the Enterobacteriaceae family, particularly Salmonella and Shigella species.

    • Mannitol salt agar (MSA) isolates organisms, especially halophiles, that ferment mannitol, producing lactic acid.

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    Description

    Test your knowledge on various bacterial culture media used in microbiology. This quiz covers specific media like Bile esculin agar, Cetrimide agar, and Mannitol salt agar, and their applications in isolating different bacteria. Perfect for students and professionals in the field of microbiology.

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