Biology Forums - Study Force

The process by which infectious agents are ingested by host cells is termed
 
  A. exocytosis.
  B. pinocytosis.
  C. endocytosis.
  D. phagosome fusion.

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Colonization of the body is inhibited by
 
  A. the shedding of skin cells.
  B. the movement of mucus by cilia.
  C. peristalsis.
  D. the flushing action of the urinary tract.
  E. All of the choices are correct.

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The lack of susceptibility to diseases of other species in humans may be due to the
 
  A. secretion of exotoxins.
  B. presence of endotoxins.
  C. action of IL-2.
  D. lack of receptors that are recognized by adherence factors.

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An example of genetic variation used in pathogen survival may be
 
  A. production of a comet's tail.
  B. protease production.
  C. inhibition of MHC Class I antigen production.
  D. changing the pilus type.
  E. production of a comet's tail AND protease production.

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Typically, adhesins
 
  A. are found on pili.
  B. help bacteria attach to host cells.
  C. are proteins.
  D. are found on host cells.
  E.
  are found on pili, help bacteria attach to host cells, AND are proteins.

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