Clinical Bacteriology BS MLS | Bacillus Anthracis Characteristics Quiz
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Questions and Answers

Which of the following is NOT a virulence factor of Bacillus anthracis?

  • Spore
  • Capsule with D-glutamate composition
  • Lecithinase C (correct)
  • Exotoxin

    • What is the appearance of Bacillus anthracis colonies on Blood Agar Plate (BAP)?

  • Swirling phenomenon
  • Medusa head colonies (correct)
  • Inverted pine tree appearance
  • Rough, irregular colonies

    • Which test is used to detect alpha toxin and lecithinase C produced by Bacillus anthracis?

  • Skin test
  • String of pearls test
  • Gram stain
  • Nagler test (correct)

    • What is the property of the colonies of Bacillus anthracis when grown on Blood Agar Plate (BAP)?

    <p>Central spore</p> Signup and view all the answers

    Which medium is used in the String of Pearls Test to determine the susceptibility of Bacillus anthracis to penicillin?

    <p>Mueller-Hinton Agar (MHA)</p> Signup and view all the answers

    Which components make up the medium for the Skin Test for Bacillus anthracis?

    <p>Polymyxin, lysozyme, EDTA</p> Signup and view all the answers

    Which of the following bacteria is most likely to cause black eschar?

    <p>Clostridium welchii</p> Signup and view all the answers

    Which bacterium is used in the Guthrie Bacterial Inhibition Test for Phenylketonuria (PKU)?

    <p>Bacillus subtilis</p> Signup and view all the answers

    What is the most common source of infection for Clostridium welchii?

    <p>Wound contaminated with soil</p> Signup and view all the answers

    Which bacterium is commonly associated with neurotoxic disease?

    <p>Clostridium tetani</p> Signup and view all the answers

    Which bacterium is associated with gas gangrene?

    <p>Clostridium perfringens</p> Signup and view all the answers

    Which bacterium is known as the 'Canned Good Bacillus'?

    <p>Clostridium botulinum</p> Signup and view all the answers

    Which bacterium is associated with causing necrotic enteritis?

    <p>Clostridium perfringens</p> Signup and view all the answers

    Which bacterium is used as a biological indicator in autoclave, aside from Clostridium PA 3679?

    <p>Bacillus subtilis</p> Signup and view all the answers

    What is the former name of Clostridium welchii?

    <p>Bacillus aerogenes</p> Signup and view all the answers

    What is the property of Clostridium botulinum spores?

    <p>Spherical and subterminal</p> Signup and view all the answers

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