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Exam 4

Part B- Multiple Choice

QuestionAnswer
Which of the following antibodies is not a monomer? IgA
Microbiota May be an opportunistic pathogen
Which of the following definitions is INCORRECT? epidemic: a disease that is endemic across the world
A nosocomial infection is acquired during the course of hospitalization
Which of the following recognizes antigens displayed on host cells with MHC II? TH Cell
The Koch's work is used to determined that Microorganisms cause disease
One effect of washing regularly with antibacterial agents is the removal of normal microbiota. This can result in Increased susceptibility to desease
Which of the following can contribute to postoperative infections? -Normal microbiota on the operating room staff -Errors in aseptic technique -Using syringes more than once -Abx resistance (all of the above)
Endotoxins are Part of the gram-negative cell wall
Cytopathic effects are changes in host cells due to Viral infections
Which of the following does NOT contribute to the virulence of a pathogen? -Numbers of invading microorganisms -Cell wall -Toxins -Enzymes -(All of these contribute to virulence)
Which of the following destroys virus-infected cells? Tc
Which organism most easily causes an infection? Legionella pneumophila
Activation of C5-C9 results in Leakage of cell contents
What type of immunity results from vaccination? artificially acquired active immunity
Which of the following is involved in resistance to parasitic helminths? monocytes
A patient shows the presence of antibodies against diphtheria toxin. Which of the following statements is false The patient was near someone who had the disease.
Live polio virus can be used in a(n) Attenuated whole-agent vaccine
Dead Bordetella pertussis can be used in a(n) Inactivated whole-agent vaccine
The ability of some microbes, such as Trypanosoma or Giradia to alter their surface molecules and evade destruction by the host's antibodies is called antigenic variation
Botulism is caused by ingestion of a proteinaceous exotoxin; therefore, it can easily be prevented by boiling food prior to consumption
Which of the following statements is NOT a possible outcome of antigen-antibody reaction? clonal deletion
Which of the following cells is NOT an APC? Natural killer cells
Which of the following is NOT a characteristic of B cells? They recognize antigens associated with MHC I.
Activation of C5-C9 results in Leakage of cell contents
____ is involved in resistance to parasitic helminths. Monocytes
___ destroys virus-infected cells. Tc
Cytopathic effects are changes in host cells due to? Viral infections
__ Cells recognizes antigens displayed on host cells with MHC II. B
___ Cells is NOT an APC. Natural Killer
_____ is NOT a characteristic of B cells. They recognize antigens associated with MHC I
The ability of some microbes, such as Trypanosoma or Giardia to alter their surface molecules and evade destruction by the host's antibodies is called antigenic variation
All of these are Reservoirs of infection A sick person A hospital Wild animals Soil
Which organism most easily causes an infection? Legionella pneumophila
Created by: arichardson_14