Alternative Pathway of Complement System Quiz
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Questions and Answers

What is the major proteolytic fragment of C3 that becomes covalently attached to microbes and is able to recruit and activate downstream complement proteins on the microbial surface?

  • C3b (correct)
  • C5a
  • C4b
  • C3a
  • What is the process called when a microbe is coated with molecules that are recognized by receptors on phagocytes?

  • Inflammation
  • Opsonization (correct)
  • Phagocytosis
  • Lysis
  • What is the function of some proteolytic fragments of complement proteins, especially C5a and C3a, in host defense?

  • Cell lysis
  • Inflammation (correct)
  • Phagocytosis
  • Opsonization
  • What triggers the alternative pathway of the complement system?

    <p>Microbial surfaces</p> Signup and view all the answers

    Which pathway of the complement system is initiated by a microbial product in the absence of antibody?

    <p>Lectin pathway</p> Signup and view all the answers

    What is the function of activated complement proteins?

    <p>To function as proteolytic enzymes</p> Signup and view all the answers

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