Micro Chp 15

  1. 1)The most frequently used portal of entry for pathogens is the




    B)
  2. Chapter 15. Microbial Mechanisms of PathogenicityMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.1)The most frequently used portal of entry for pathogens is the




    C)
  3. 2)Which of the following diseases isNOT usually contracted by the respiratory route?




    B)
  4. 3)Most pathogens that gain access through the skin




    E)
  5. 4)The ID50 is a




    B)
  6. 5)Which of the following doesNOT contribute to a pathogen's invasiveness?




    C)
  7. 6)Which of the following statements is false?




    E)
  8. 6)Which of the following statements is false?




    B)
  9. 8)Endotoxins are




    D)
  10. Which of the following isNOT a membrane-disrupting toxin?




    E)
  11. Cytopathic effects are changes in host cells due to




    A)
  12. Which of the following doesNOT contribute to the symptoms of a fungal disease?




    C)
  13. Which of the following isNOT a method of avoiding host antibodies?




    C)
  14. Siderophores are bacterial proteins that compete with animal




    B)
  15. Which of the followingCANNOT be used for adherence?
    A)Fimbriae
    B)Cell membrane mannose
    C)Glycoproteins
    D)Lipoproteins
    E)Capsules
    B
  16. Which of the following isNOT considered entry via the parenteral route?




    B)
  17. A cell wall can increase a bacterium's virulence because cell wall lipid A




    D)
  18. Botulism is caused by a proteinaceous exotoxin; therefore it can easily be prevented by




    A)
  19. Which of the following organisms does NOT produce an exotoxin?




    E)
  20. hich of the following cytopathic effects is cytocidal?




    B)
  21. Which of the following isNOT used by bacteria for attachment to a host?




    C)
  22. Symptoms of protozoan and helminthic diseases are due to




    D)
  23. Which of the following statements about staphylococcal enterotoxin is false?




    E)
  24. Which of the following doesNOT contribute to the virulence of a pathogen?




    E)
  25. Lysogenic bacteriophages contribute to bacterial virulence because bacteriophages




    C)
  26. Thirty-two people in San Francisco who ate jackfish caught at Midway Island developed malaise, nausea,blurred vision, breathing difficulty, and numbness from 3 to 6 hours after eating. The most likely cause of thisfood intoxication is




    C)
  27. Which of the following statements about M protein is false?




    A)
  28. Septic shock due to gram-positive bacteria is caused by




    C)
  29. needlestick is an example of which portal of entry?




    B)
  30. Poliovirus is ingested and gains access to tissues by which portal of entry?




    C)
  31. Pseudomonas aeruginosa produces a two-part exotoxin. The most likely pathologic effect of this toxin is




    D)
  32. Cholera toxin polypeptide A binds to surface gangliosides on target cells. If the gangliosides were removed,




    D)
  33. Which is a method of avoiding phagocytosis?




    E)
  34. The mechanism by which gram-negative bacteria can cross the blood-brain barrier?




    D)
  35. Injectable drugs are tested for endotoxins by




    A)
  36. Endotoxins in sterile injectable drugs could cause




    B)
  37. Gram-negative septic shock results from the following events. What is the second step?




    C)
  38. Antibiotics can lead to septic shock if used to treat




    E)
  39. Which of the following isNOT a cytopathic effect of viruses?




    B)
  40. Which of the following organisms causes the most severe disease?




    D)
  41. Table 15.1Use these data to answer the following question:BacteriaPortal of entryID50Staphylococcus aureusWound<10S. aureusWound+ampicillin30040)The administration of ampicillin before surgery




    D)
  42. Which organism most easily causes an infection?




    D)
  43. Bacteria that cause periodontal disease have adhesins for receptors on streptococci that colonize on teeth. Thisindicates that




    B)
  44. NonpathogenicVibrio cholerae can acquire the cholera toxin gene by




    E)
  45. In response to the presence of endotoxin, phagocytes secrete tumor necrosis factor. This causes




    A)
  46. Patients developed inflammation a few hours following eye surgery. Instruments and solutions were sterile,and theLimulus assay was positive. The patients’ inflammation was due to




    A)
Author
Anonymous
ID
323430
Card Set
Micro Chp 15
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Micro Chp 15
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