Mic Exam 3 Practice Questions

69 Questions | Total Attempts: 578

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Mic Exam 3 Practice Questions

Quiz questions for micro Exam 3.


Questions and Answers
  • 1. 
    What virulence factor do ALL Gram-Negative Bacilli have in common?
    • A. 

      Endotoxin

    • B. 

      Exotoxins

    • C. 

      Enzymes capsules

    • D. 

      Fimbreae

  • 2. 
    T/F: Gram negative bacilli cause the same types of disease..
    • A. 

      True

    • B. 

      False

  • 3. 
    Which of the following are environmental niches that gram-negative bacilli occupy?
    • A. 

      Intestines

    • B. 

      Respiratory tract

    • C. 

      Soil and water

    • D. 

      All of the above

  • 4. 
    Gram-negative bacilli can be zoonotic.
    • A. 

      True

    • B. 

      False

  • 5. 
    Which of the following is NOT a Gram-negative coccobacilli?
    • A. 

      Haemophilus influenzae

    • B. 

      Bordetella pertussis

    • C. 

      Francisella tularemia

    • D. 

      Brucella species

    • E. 

      Pasteurella multocida

    • F. 

      Clostridium perfringens

  • 6. 
    All gram negative coccobacilli affect both animals and humans equally.
    • A. 

      True

    • B. 

      False

  • 7. 
    Haemophilus influenzae strains can be divided into two groups based upon
    • A. 

      Their ability to produce capsules

    • B. 

      Their ability to produce endotoxins

    • C. 

      Their ability to produce exotoxins

  • 8. 
    Antibodies against the capsule show that there are ____different serotypes for Encapsulated strains of Haemophilus influenzae
    • A. 

      4

    • B. 

      5

    • C. 

      6

    • D. 

      7

  • 9. 
    Which strain of  Haemophilus influenzae causes 90% of noninvasive respiratory tract infections
    • A. 

      Encapsulated

    • B. 

      Nonencapsulated

    • C. 

      Option 3

  • 10. 
    Which encapsulated H. Influenzae serotype causes 95% of invasive disease (meaning the bacteria enters the bloodstream).
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E

  • 11. 
    Which of the following virulence factors is not produced by H. influenzae
    • A. 

      Fimbriae

    • B. 

      Capsule

    • C. 

      Endotoxin

    • D. 

      Exotoxin

  • 12. 
    Which virluence factor produced by H. influenzae helps respiratory tract colonization by blocking cilia clearance and Induces inflammation at site of infection
    • A. 

      Fimbriae

    • B. 

      Capsule

    • C. 

      Endotoxin

    • D. 

      Exotoxin

  • 13. 
    H. . influenzae causes disease by simply being in the environment and sparking inflammation through endotoxin
    • A. 

      True

    • B. 

      False

  • 14. 
    Which infection is a Systemic infection caused by H. influenza?
    • A. 

      Meningitis

    • B. 

      Sinus infection

    • C. 

      Pneumonia

    • D. 

      Diarrhea

  • 15. 
    Which of the following is NOT a virulence factor produced by H. influenza?
    • A. 

      Fimbriae

    • B. 

      Capsule

    • C. 

      Endotoxin

    • D. 

      Exotoxin

  • 16. 
    Haemophilus influenza is easy to grow
    • A. 

      True

    • B. 

      False

  • 17. 
    Haemophilus influenza quickly invades into cells.
    • A. 

      True

    • B. 

      False

  • 18. 
    For which gram-negative bacilli is a protective antibody against the capsule the key?
    • A. 

      H. influenzae

    • B. 

      B. pertussis

    • C. 

      F. tularemia

    • D. 

      P. multocida

  • 19. 
    H. influenzae causes disease by simply being in the environment and sparking inflammation through endotoxin
    • A. 

      True

    • B. 

      False

  • 20. 
    Which of the following is NOT a gram-negative bacilli?
    • A. 

      Haemophilus influenzae

    • B. 

      Bordetella pertussis

    • C. 

      Francisella tularemia

    • D. 

      Pasturella multocida

    • E. 

      Pseudomonas aeruginosa

  • 21. 
    At what age do children begin to make their own antibody to sugars and start to make their own protection?
    • A. 

      Birth

    • B. 

      6 months

    • C. 

      2 years

    • D. 

      6 years

  • 22. 
    What causes meningitis?
    • A. 

      Encapsulated strain of H. influenzae

    • B. 

      Unencapsulated strain of H. influenzae

    • C. 

      Bordatella pertussis

    • D. 

      Fransicella tularensis

  • 23. 
    What are primarily caused by unencapsulated strains of H. influenzae?
    • A. 

      Meningitis

    • B. 

      Local respiratory tract infections

    • C. 

      Systemic infections

    • D. 

      Whooping cough

  • 24. 
    Which of the following is NOT one of the best drugs active against almost 100 percent of H. influenzae strains?
    • A. 

      Azithromycin (macrolide)

    • B. 

      Fluoroquinolones

    • C. 

      Cephalosporin

    • D. 

      Ampicillin

  • 25. 
    Which gram-negative bacilli is hard to grow like H. influenzae; however, does not specifically require X and V?
    • A. 

      Bordetella pertussis

    • B. 

      Francisella tularemia

    • C. 

      Pasturella multocida

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