Immunology #2: Innate Immunity

10 Questions

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Immunology Quizzes & Trivia

Questions and Answers
  • 1. 
    C3 is normally at low concentrations in the body. Therefore, large quantities must be produced before C3b formation and binding to the pathogen
    • A. 

      True

    • B. 

      False

  • 2. 
    All pathways come to the same end, the cleavage of the C3 into C3b and C3a
    • A. 

      True

    • B. 

      False

  • 3. 
    • A. 

      B binds to iC3, B cleaves with to form the iC3Bb complex, D binds then leaves, another C3 binds and is cleaved into C3a and C3b

    • B. 

      B binds to iC3, D binds then leaves, B cleaves with to form the iC3Bb complex, another C3 binds and is cleaved into C3a

    • C. 

      D binds then leaves, B binds to iC3, B cleaves with to form the iC3Bb complex, another C3 binds and is cleaved into C3a

  • 4. 
    Another name for the alternative C3 convertase enzyme is
  • 5. 
    Examples of anaphylatoxins include (check all that apply)
    • A. 

      C3b

    • B. 

      C3a

    • C. 

      C5b

    • D. 

      C5a

  • 6. 
    Which of the following statements correctly describes the actions of Toll-Like Receptors 3 & 4?
    • A. 

      TLR-3 works within cell recognizing the double-stranded RNA of viruses; TLR-4, on the outside of the cell recognizes LPS on gram-negative bacteria

    • B. 

      TLR-3 on the outside of the cell recognizes LPS on gram-negative bacteria; TLR-4 works within cell recognizing the double-stranded RNA of viruses

  • 7. 
    Which of the following is NOT an action of the Type 1 Interferon alpha and beta
    • A. 

      Increase resistance to viral replication

    • B. 

      Decrease resistance to viral replication

    • C. 

      Increase NK cell killing

    • D. 

      Create viral ligands to work on NK cell receptors to increase expression of the ligands

  • 8. 
    An antibody is an example of an opsonin
    • A. 

      True

    • B. 

      False