Micro: Entry, Exit, Transmission

20 Questions | Total Attempts: 51

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Micro: Entry, Exit, Transmission

Questions and Answers
  • 1. 
    Which is not a protective barrier of the skin?
    • A. 

      PH 5.5

    • B. 

      Langerahans cells

    • C. 

      Normal flora

    • D. 

      Hair

  • 2. 
    What is an infection of a hair follicle called?
    • A. 

      Ingrown hair

    • B. 

      Stye

    • C. 

      Tinea

    • D. 

      Folliculitis

  • 3. 
    Which is NOT an area of entry of microrganisms into the host?
    • A. 

      Respiratory tract

    • B. 

      GI tract

    • C. 

      Blood vessels

    • D. 

      GU tract

  • 4. 
    Which layer of the skin do dermatophytes infect the non-living keratinous structures?
    • A. 

      Stratum basale

    • B. 

      Stratum spinosum

    • C. 

      Stratum lucidium

    • D. 

      Stratum corneum

  • 5. 
    Infection is established if the rate of growth in the keratin layer is greater than th reate of shedding in the keratinous product.
    • A. 

      True

    • B. 

      False

  • 6. 
    Which is NOT a burrowing microbe?
    • A. 

      Schistosoma

    • B. 

      Hepatitis B

    • C. 

      Leptospira

    • D. 

      Ancylostoma

  • 7. 
    Which bacteria has efficient attachment mechanisms to the conjunctiva?
    • A. 

      Chlamydia

    • B. 

      Leptospira

    • C. 

      Pertussis

    • D. 

      Schistosoma

  • 8. 
    The conjunctiva is a specialized area of the skin around the eye.
    • A. 

      True

    • B. 

      False

  • 9. 
    What to microbes that infect the respiratory system attach to or inhibit?
    • A. 

      Alveoli

    • B. 

      Lung epithelium

    • C. 

      Microvilli

    • D. 

      Bronchioles

  • 10. 
    What bacteria causes whooping cough?
    • A. 

      M. pneumoniae

    • B. 

      H. influenzae

    • C. 

      B. pertussis

    • D. 

      B. anthracis

  • 11. 
    What structure do both Shigella and Salmonella invade in the GI epithelium?
    • A. 

      Microvilli

    • B. 

      M cells

    • C. 

      GALT

    • D. 

      Lymphoid tissue

  • 12. 
    Both Shigella and Salmonella produce apoptosis in their host cells.
    • A. 

      True

    • B. 

      False

  • 13. 
    What is the disease as the result of Samolnella infection?
    • A. 

      Typhoid fever

    • B. 

      Diarrhea

    • C. 

      Scarlet fever

    • D. 

      Septicemia

  • 14. 
    What enzyme does H. pylori produce in effect to counteract ____ in the stomach?
    • A. 

      Urease; mucous secretion

    • B. 

      Mucinase; mucous secretion

    • C. 

      Urease; pH

    • D. 

      Mucinase; phagocytosis

  • 15. 
    The urinogenital tract in a _______, so microorganisms can spread easily from one part of another.
  • 16. 
    What microogranism is part of t the vagina normal flora and is responsible for lowering the pH?
    • A. 

      Streptococci

    • B. 

      Lactobacilli

    • C. 

      Staphlococci

    • D. 

      Candida

  • 17. 
    Bacterial infections are less common in uncircumcised than circumcised males.
    • A. 

      True

    • B. 

      False

  • 18. 
    Candida is a common invader of the urinary tract causing cystitis.
    • A. 

      True

    • B. 

      False

  • 19. 
    What is the antibody in mucous secretions that aid in host defense?
    • A. 

      IgE

    • B. 

      IgG

    • C. 

      IgA

    • D. 

      IgM

  • 20. 
    Which is NOT a common urogential tract transmission?
    • A. 

      Urine

    • B. 

      Semen

    • C. 

      Blood

    • D. 

      Vaginal secretions

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