Microbiology Exam V - Summer 2011

153 Questions | Total Attempts: 163

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Microbiology Quizzes & Trivia

Questions and Answers
  • 1. 
    Neonatal meningitis is most commonly transmitted by
    • A. 

      Breast feeding

    • B. 

      Hospital personnel

    • C. 

      Transplacental infection

    • D. 

      Exposure in birth canal

    • E. 

      Exposure from other infants

  • 2. 
    Production of a neurotoxin that binds to target sites on spinal cord neurons responsible for inhibiting skeletal muscle contraction is a characteristic of
    • A. 

      Clostridium botulinum

    • B. 

      Clostridium perfringens

    • C. 

      Clostridium difficile

    • D. 

      Clostridium tetani

    • E. 

      All of the choices are correct

  • 3. 
    Which of the following provides the eye with its best defense against microorganisms?
    • A. 

      Conjunctiva

    • B. 

      Eyelids

    • C. 

      Lymphocytes

    • D. 

      Tears

    • E. 

      Eyelashes

  • 4. 
    Gp120 binds to
    • A. 

      Protein A

    • B. 

      Reverse transcriptase

    • C. 

      CD8

    • D. 

      CD4

  • 5. 
    A diagnosis of tuberculosis involves
    • A. 

      Chest X-ray

    • B. 

      Acid-fast stain of sputum

    • C. 

      Sputum culture

    • D. 

      Tuburculin skin test

    • E. 

      All of the choices are correct

  • 6. 
    Reactivation of chickenpox is called
    • A. 

      Shingles

    • B. 

      Herpes zoster

    • C. 

      Pneumonia

    • D. 

      Exanthems

    • E. 

      Shingles AND herpes zoster

  • 7. 
    Which is not correct about Mycobacterium species?
    • A. 

      All species are human pathogens

    • B. 

      Cell walls have waxy lipids

    • C. 

      Acid fast

    • D. 

      Usually have long slow growth rate

    • E. 

      Long, slender rods

  • 8. 
    "Rice water stools" are associated with disease caused by this organism
    • A. 

      Vibrio fulnificus

    • B. 

      Vibrio parahaemolyticus

    • C. 

      Vibrio cholerae

    • D. 

      Campylobacter jejuni

    • E. 

      Helicobacter pylori

  • 9. 
    Which of the following organisms causes urinary tract infections?
    • A. 

      Proteus mirabilis

    • B. 

      Schistosoma haematobium

    • C. 

      Treponema pallidum

    • D. 

      Group B streptococcus

    • E. 

      Gardnerella

  • 10. 
    One virulence factor of Mycobacterium leprae is the ability to live inside
    • A. 

      Skin cells

    • B. 

      Nerve cells

    • C. 

      Schwann cells

    • D. 

      Macrophages

    • E. 

      Muscle cells

  • 11. 
    Lyme disease is transmitted by
    • A. 

      Flies

    • B. 

      Droplets

    • C. 

      Lice

    • D. 

      Fleas

    • E. 

      Ticks

  • 12. 
    Impetigo is caused by
    • A. 

      Propionibacterium acnes

    • B. 

      Corynebacterium diphtheriae

    • C. 

      Staphylococcus aureus

    • D. 

      Streptococcus pyogenes

    • E. 

      Both staph. aureus and strep. pyogenes

  • 13. 
    Production of enterotoxin is a characteristic of
    • A. 

      Clostridium botulinum

    • B. 

      Clostridium perfringens

    • C. 

      Clostridium difficile

    • D. 

      Clostridium tetani

    • E. 

      All of the choices are correct

  • 14. 
    Production of a neurotoxin that prevents acetylcholine release from motor neurons at neuromuscular junctions is a characteristic of
    • A. 

      Clostridium botulinum

    • B. 

      Clostridium perfringens

    • C. 

      Clostridium difficile

    • D. 

      Clostridium tetani

    • E. 

      All of the choices are correct

  • 15. 
    What material in skin cells provides protection from abrasions, water damage and microorganism entry?
    • A. 

      Lysozyme

    • B. 

      Keratin

    • C. 

      Sweat

    • D. 

      Sebum

    • E. 

      Salt

  • 16. 
    The most immediate and important treatment needed to prevent death in cholera victims is
    • A. 

      Water and electrolyte replacement

    • B. 

      Antimicrobials

    • C. 

      Antitoxin

    • D. 

      Surgery

    • E. 

      None of the choices are correct

  • 17. 
    MRSAs are S. aureus strains that are
    • A. 

      Resistant to mupirocin

    • B. 

      Responsive to mupirocin

    • C. 

      Resistant to penicillin derivatives

    • D. 

      Responsive to penicillin derivatives

    • E. 

      Related to S. pyogenes

  • 18. 
    Which chemical, produced by S. aureus is also known as "spreading factor"?
    • A. 

      Coagulase

    • B. 

      Penicillinase

    • C. 

      Hemolysin

    • D. 

      Hyaluronidase

    • E. 

      Toxic shock syndrome toxin

  • 19. 
    The primary viral cause of chronic diarrhea, globally, is
    • A. 

      Cryptosporidium

    • B. 

      Rotavirus

    • C. 

      Adenovirus

    • D. 

      Norovirus

    • E. 

      Astrovirus

  • 20. 
    The normal biota of the CNS consists of
    • A. 

      Neisseria meningitidis

    • B. 

      Herpes Simplex I

    • C. 

      Herpes Simplex II

    • D. 

      Streptococcus agalactiae

    • E. 

      The CNS has no normal biota

  • 21. 
    __________ occurs when bacteria flourish and grow in the blood stream.
    • A. 

      Viremia

    • B. 

      Fungemia

    • C. 

      Hemovirus

    • D. 

      Bacteremia

    • E. 

      Septicemia

  • 22. 
    Which of the following is not true of Ebola and Marburg?
    • A. 

      Caused by filoviruses

    • B. 

      Disruption of clotting factors

    • C. 

      Transmitted by direct contact with body fluids

    • D. 

      Transmitted by mosquitos

    • E. 

      There is not treatment

  • 23. 
    The toxin of Staphylococcus aureus strains that causes blisters and desquamation of skin in scalded skin syndrome is
    • A. 

      Enterotoxin

    • B. 

      Hemolysin

    • C. 

      Toxic shock syndrome toxin

    • D. 

      Exfoliative toxin

    • E. 

      Erythrogenic toxin

  • 24. 
    Which organism is a common cause of meningitis in AIDS patients and can be found in bird droppings?
    • A. 

      Listeria monocytogenes

    • B. 

      Haemophilus influenza

    • C. 

      Neisseria meningitidis

    • D. 

      Cryptococcus neoformans

    • E. 

      Streptococcus agalactiae

  • 25. 
    Retroviruses have the following characteristics except
    • A. 

      Glycoprotein spikes

    • B. 

      DNA protein

    • C. 

      Enveloped

    • D. 

      Reverse transcriptase

    • E. 

      Viral genes integrate into the host genome

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