Unraveling the Power of Antibodies
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Questions and Answers

Which of the following is the main function of antibodies in the gut and airways?

  • To bind to specific receptors on host cells
  • To block the entry of ingested and inhaled microbes (correct)
  • To replicate inside host cells
  • To mediate the harmful effects of endotoxins and exotoxins

    • How do antibodies prevent infectious microbes from infecting host cells?

  • By blocking the spread of infection
  • By replicating inside the cells
  • By binding to microbial surface molecules (correct)
  • By neutralizing toxins

    • What was the first formal demonstration of therapeutic immunity against a microbe or its toxin called?

  • Endotoxin therapy
  • Toxin therapy
  • Microbial therapy
  • Serum therapy (correct)

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