Micro-pathogenic Bacteria I

54 Questions | Total Attempts: 216

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Bacteria Quizzes & Trivia

Quiz based on Micobiology Lecture - Pathogenic Bacteria I


Questions and Answers
  • 1. 
    Which is not one of the 3 parts of Taxonomy
    • A. 

      Classification

    • B. 

      Nomenclature

    • C. 

      Identification

    • D. 

      Disausation

  • 2. 
    Which of these classification terms is the most specific
    • A. 

      Kingdoms/domains

    • B. 

      Phyla

    • C. 

      Classes

    • D. 

      Orders

    • E. 

      Families

    • F. 

      Genera

    • G. 

      Strains

  • 3. 
    Regarding growth properites on agar, beta hemolysis gets a clear area around colonies and alpha hemolysis gets a greenish coloring of agar around the colonies
    • A. 

      True

    • B. 

      False

  • 4. 
    Which is not true about Streptococci
    • A. 

      Carry out respirations and most pathogenic species grow in air

    • B. 

      Oxygen tolerant anaerobes

    • C. 

      Main pathogens are the beta hemolytic streptococci

    • D. 

      Have proteins that aid in virulence

    • E. 

      Grow in pairs or chains

  • 5. 
    Which is not true about staphylococci
    • A. 

      Can be hemolytic but most are non hemolytic

    • B. 

      Stapylococci are aerobes

    • C. 

      S. aureus produces coagulase that clots plasma

    • D. 

      Grows is grape like clusters

    • E. 

      None of the above

  • 6. 
    What best describes Neisseria spp.
    • A. 

      Gram negative cocci

    • B. 

      Found in mouth and throat of healthy peopl

    • C. 

      Pathogenic species include gonococcus and meningococcus

    • D. 

      All the above

  • 7. 
    Which statement about gram positive rods is true
    • A. 

      Listeria sp. causes anthrax

    • B. 

      Clostridium spp. produce endotoxins causing gas gangrene, tetany, diarrhea

    • C. 

      Includes clostridum, listeria, bacillus anthracis and pseudomonas

    • D. 

      Bacillus anthracis affects infants and pregnant women

  • 8. 
    Enterobacteriaceae are divided into lactose fermenters (pink colonies on agar) and non lactose fermenters (clear colonies)
    • A. 

      True

    • B. 

      False

  • 9. 
    This gram negative rod causes gastritis, gastric ulcers and gastric cancer
    • A. 

      Vibrio spp. (v.cholera)

    • B. 

      Pseudomonas

    • C. 

      Campylobacter jejuni

    • D. 

      Helicobacter pylori

  • 10. 
    This gram negative rod causes infectious diarrhea
    • A. 

      Vibrio spp.

    • B. 

      Pseudomonas

    • C. 

      Campylobacter jejuni

    • D. 

      Helicobacter pylori

  • 11. 
    This gram negative rod can be normally found in the throat of healthy individuals and can cause pneumonia and meningitis
    • A. 

      Helicobacter pylori

    • B. 

      Legionella

    • C. 

      Haemophilus spp.

    • D. 

      Vibrio spp.

  • 12. 
    This gram negative rod causes whooping cough
    • A. 

      Haemophilus spp

    • B. 

      Bordatella spp.

    • C. 

      Brucella

    • D. 

      Legionellla

  • 13. 
    This gram negative rod causes cat scratch fever
    • A. 

      Brucella

    • B. 

      Haemophilus spp

    • C. 

      Bordatella spp:

    • D. 

      Bartonella

  • 14. 
    Regarding acid fast bacteria, which is not true?
    • A. 

      Includes mycobacterium, actinomycetes

    • B. 

      Includes treponema pallidum, borrelia spp. and leptospira

    • C. 

      Cause granulomas in lungs and tissue infections

    • D. 

      Can cause pneumonia

  • 15. 
    Regarding spirochetes, which statement is false
    • A. 

      Are spherical shaped bacteria

    • B. 

      Treponema pallidum causes syphilis

    • C. 

      Borrelia spp. cause lyme disease and B. recurrentis causes relapsing fever

    • D. 

      Leptospira causes hemorragic fever

  • 16. 
    Small intracellular bacteria, no growth on artificial media, causes STD or Pneumonia in young adults
    • A. 

      C. trachomatis, C. pneumonia

    • B. 

      Treponema paliddum

    • C. 

      Mycoplasma and leptospira

    • D. 

      Mycobacterium and borrelia

  • 17. 
    Small intracellular, rod shaped bacteria also obligate parasites, causes Rocky mountain Spotted Fever
    • A. 

      Mycoplasma

    • B. 

      Rickettsiae

    • C. 

      C. trachomatis

    • D. 

      Treponema pallidum

  • 18. 
    Mycoplasma requires sterols for growth and lacks rigid cell wall ( no murein)
    • A. 

      True

    • B. 

      False

  • 19. 
    Which is not true about staphylococci
    • A. 

      Survives in inanimate objects and can cause disease almost anywhere on the body

    • B. 

      Strains that cause toxic shock syndrome are pyogenic

    • C. 

      Found in pimples, boils, good poisoning, endocarditis, osteomyelitis bacteremia

    • D. 

      Virulence factors include enterotoxins, teichoic acids, coagulase, leukocidins and protein a

    • E. 

      Can grow in high salt and lipid concentrations because it makes enzymes that break down skin lipids

  • 20. 
    MSCRAMMS allow bacteria to colonize skin and mucosal surfaces
    • A. 

      True

    • B. 

      False

  • 21. 
    The damage caused by staphylococci is due to host immune response and pathogen actions which best describes staphylococci's ability to cause damage
    • A. 

      Forms abscesses due to collection of pus in skin or cellulitis in submucosal tissue

    • B. 

      Bacteria kill neutrophils and the neutrophils release lysosymal enzymes that damage tissue

    • C. 

      Pore forming toxins, hyaluronidase, beta lactamase and PBP2a

    • D. 

      All of the above

  • 22. 
    Virulence factor responsible for the break down of the matrix of connective tissue and allows staphylococcus to cause bone and joint infections
    • A. 

      Capsule

    • B. 

      PBP2a

    • C. 

      Hyaluronidase

    • D. 

      B-Lactamases

    • E. 

      Pore forming toxins

  • 23. 
    Virulence factor that causes damage to cells and interferes with homeostasis
    • A. 

      Catalase

    • B. 

      PBP2a

    • C. 

      Hyaluronidase

    • D. 

      Pore forming toxins

  • 24. 
    This virulence factor is present in staph but not in strep and converts hydrogen peroxide to water
    • A. 

      Coagulase

    • B. 

      Hyaluronidase

    • C. 

      PBP2a

    • D. 

      Catalase

  • 25. 
    Virulence factor that converts fibrinogen to fibrin and blocks phagocytosis
    • A. 

      Capsule

    • B. 

      Catalase

    • C. 

      Coagulase

    • D. 

      Hyaluronidase