Immunoglobulin G Subclasses Structural Differences Quiz
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Questions and Answers

Which IgG subclass has a shorter hinge region with a rigid poly-proline double helix?

  • IgG4
  • IgG2 (correct)
  • IgG3
  • IgG1
  • Which IgG subclass is very susceptible to cleavage by proteolytic enzymes like papain and plasmin?

  • IgG1
  • IgG3 (correct)
  • IgG2
  • IgG4
  • At what age do 'adult' concentrations of IgG2 isotype are usually reached?

  • 8-10 years
  • 6-7 years (correct)
  • 3-4 years
  • 1-2 years
  • Which IgG subclass binds to the Fc-receptor of phagocytic cells and activates the complement cascade?

    <p>IgG1</p> Signup and view all the answers

    Which IgG isotype is associated with recurring airway/respiratory infections in infants?

    <p>IgG2</p> Signup and view all the answers

    What role does IgG4 play in the immune system?

    <p>Unknown role</p> Signup and view all the answers

    What is the valence of IgM in its pentameric form?

    <p>10</p> Signup and view all the answers

    Which statement about IgA is correct?

    <p>It is important in mucosal immunity</p> Signup and view all the answers

    Where is IgD primarily found in the body?

    <p>On B cell surfaces</p> Signup and view all the answers

    What is the main function of IgE in the immune system?

    <p>Binding to Fc receptors on basophils and mast cells</p> Signup and view all the answers

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