Micro Test 4

193 Questions | Total Attempts: 23

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Microbiology Quizzes & Trivia

Microbiology Test 4


Questions and Answers
  • 1. 
    A number of different medicines are used to treat AIDS patients. Specify two different types of medicine commonly used (not the specific drug, but how they work)
  • 2. 
    List the 4 main ways bacteria are resistant to antibiotics (mechanisms of resistance) Include a specific example
  • 3. 
    Explain what the term MRSA indicates. Specify the usual mechanism of resistance in MRSA involving penicillin binding proteins (PBR)
  • 4. 
    Discuss the term "therapeutic index" and its importance
  • 5. 
    Define mycotoxin, include example
  • 6. 
    Define mycotoxin, include example
  • 7. 
    Explain the usual mechanism of resistance in MRSA involving penicillin binding proteins (PBP)
  • 8. 
    (?)One of the two common causes of viral gastroenteritis is 
  • 9. 
    Explain "phage therapy"
  • 10. 
    What types (groups) of bacteria are more likely to result in fatal septic shock and why? Also, specify what actually causes the symptoms seen
  • 11. 
    What problems are associated with the use of attenuated vaccines?
  • 12. 
  • 13. 
    Compare and contrast antigenic shift and antigen drift as it occurs in the influenza virus
  • 14. 
    Discuss what accounts for the "hypermutability" of HIV.
  • 15. 
    List two mediators of anaphylactic hypersensitivities
  • 16. 
    Explain how desensitization of allergic responses can be achieved clinicallly
  • 17. 
    Physicians administering live attenuated mumps and measles vaccines prepared in chicken embryos are instructed to have epinephrine available. Why?  
  • 18. 
    Why does a blood test on women for a marriage license typically include a test for antibodies against rubella?
  • 19. 
    What is the MMR vaccine?
  • 20. 
    A reaction using red blood cells as the indicator and hemolysis indicates an antigen-antibody reaction is called
    • A. 

      Agglutination reaction

    • B. 

      Complement Fixation

    • C. 

      Immunofluorescence

    • D. 

      Neutralization reaction

    • E. 

      Precipitation reaction

  • 21. 
    The chemical mediators of anaphylaxis are
    • A. 

      Antibodies

    • B. 

      Found in basophils and mast cells

    • C. 

      Antigens

    • D. 

      Antigen-antibody complexs

    • E. 

      The proteins of the complement system

  • 22. 
    Which antibodies will be in the serum of a person with blood type B, Rh-?
    • A. 

      Anti A, anti Rh

    • B. 

      Anti A, anti B, anti Rh

    • C. 

      Anti B

    • D. 

      Anti B, anti Rh

    • E. 

      Anti A

  • 23. 
    The following events occur if human cells expressing HLA-I are mixed with anti-HLA-I complement, and trypan blue. What step indicates the cells are HLA-I?
    • A. 

      Trypan blue enters the cell

    • B. 

      Complement is fixed

    • C. 

      The MAC makes a pore in the plasma membrane

    • D. 

      Antibody binds to the cell

    • E. 

      None of the above, the T cells are missing

  • 24. 
    Clinical AIDS is diagnosed when
    • A. 

      A patient has lymphadenopathy

    • B. 

      The patient has persistent diarrhea

    • C. 

      HIV is found in a patient by Western blotting

    • D. 

      The patient has antibodies against HIV

    • E. 

      The CD4 T-cell count is

  • 25. 
    For each of the following, specify if it best represents Type I, II, III, or IV hypersensitivity.  A) Localized anaphylaxis