Mycology Dimorphic Fungi Part 2

11 Questions | Attempts: 390
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Mycology Quizzes & Trivia

Questions and Answers
  • 1. 
    Blastomyces dermatitidis at 35-37 degrees celsius on BHI, s yeastlike cells are seen; these cells have a bud on a broad base and appear to be thick walled and double contoured; the bud often remains attached until it becomes the same size as the mother cell giving them an _______ appearance.
    • A. 

      Oval

    • B. 

      Hourglass

    • C. 

      Squared

    • D. 

      Pear-shaped

  • 2. 
    Identification of Blastomyces dermatitidis involves the conversion of the mold to the yeast form in order to confirm the identification.
    • A. 

      True

    • B. 

      False

  • 3. 
    Paracoccidioides brasiliensis often occurs in adult _______; this may be due to their hormonal makeup and their occupation.
    • A. 

      Female

    • B. 

      Male

  • 4. 
    Mycelial forms of Paracoccidiodes brasiliensis mature within ______ days.
    • A. 

      7

    • B. 

      14

    • C. 

      21

    • D. 

      28

    • E. 

      3

  • 5. 
    At 35-37 degrees Celsius on BHI, large, round, fairly thick-walled cells with single and multiple buds. Paracoccidiodes brasiliensis buds are attached to the mother cell by narrow connections and may almost completely surround the cell, giving the characteristic "______ " or "_______ " appearance.
    • A. 

      Ship wheel or mariner's wheel

    • B. 

      Pirate's wheel or sailor's wheel

    • C. 

      Vessel's wheel or pilot's wheel

  • 6. 
    Penicillum marneffei is endemic to areas of ______________
    • A. 

      Africa

    • B. 

      South America

    • C. 

      North America

    • D. 

      Southeast Asia

  • 7. 
    Colonies  of Penicillium marneffei  becoming mature in ______ days at 25-30 degrees; yeastlike forms develop more slowly at 35-37 degrees celsius.
    • A. 

      7

    • B. 

      14

    • C. 

      3

    • D. 

      21

  • 8. 
    Penicillium marneffei is not inhibited by cycloheximide
    • A. 

      True

    • B. 

      False

  • 9. 
    Conversion of Penicillium marneffei from the mold to the yeast form may take up to _______ days; most rapidly accomplish by using BHI broth on a shaker.
    • A. 

      7

    • B. 

      14

    • C. 

      21

    • D. 

      3

    • E. 

      28

  • 10. 
    Penicillium marneffei has smooth conidiophores with _____ terminal metulae, each metula bearing 4-6 phialides.
    • A. 

      3-4

    • B. 

      4-5

    • C. 

      4-6

    • D. 

      5-6

  • 11. 
    Are buds produced when dealing with Penicillium marneffei?
    • A. 

      Yes

    • B. 

      No

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