Microbiology Bacterial Identification Quiz
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Questions and Answers

What was the outcome of the CAMP factor test in the report?

  • True positive result
  • Positive but not truly positive (correct)
  • Negative result
  • Indeterminate result

    • Which of the following statements is true regarding the Gram negative cocci studied?

  • Both the Slide Motility and RT Motility media tests were positive.
  • The organism was identified as Bacillus anthracis.
  • The organism showed no growth on BEA. (correct)
  • Hippurate Hydrolysis test was positive. (correct)

    • What type of colonies were observed during the preparation?

  • Rough, Spiky, and Yellow
  • Small, Circular, Convex, White/Grey (correct)
  • Large, Irregular, and Brown
  • Pinpoint, Flat, and Clear

    • Which test indicated a positive result relating to the organism's enzyme activity?

    <p>Catalase (C)</p> Signup and view all the answers

    Which organism was identified based on the laboratory report?

    <p>Corynebacterium spp. (A), Listeria monocytogenes (D)</p> Signup and view all the answers

    Flashcards

    Gram-negative cocci differentiation

    Process of distinguishing between types of gram-negative cocci using tests like BEA, motility, and catalase.

    BEA test result (small, circular colonies)

    No growth observed for gram negative cocci specimen under the specified condition.

    Catalase test result

    Positive catalase result indicates the presence of a substance that breaks down hydrogen peroxide.

    Hippurate hydrolysis test result

    Positive result indicates the presence of an enzyme (hippuricase) that breaks down hippuric acid.

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    CAMP factor test result

    A positive, though not a true positive CAMP reaction, indicates the presence of species capable of producing the CAMP factor.

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