Antibody Classes and Functions Quiz
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Questions and Answers

Which antibody has the capability to form a lattice and agglutinate pathogens effectively?

  • IgM (correct)
  • IgD
  • IgE
  • IgA

In the absence of allergen, which antibody binds to Fc receptors on mast cells?

  • IgM
  • IgA
  • IgD
  • IgE (correct)

Which antibody is found in higher levels in the serum of allergy sufferers?

  • IgM
  • IgA
  • IgE (correct)
  • IgD

Which antibody component can bind to mucus and retain antigens on the mucus surface?

<p>Secretory component of IgA (A)</p> Signup and view all the answers

Which antibody is expressed on the surface of newly formed B cells along with IgM?

<p>IgD (A)</p> Signup and view all the answers

Which of the following subclasses of IgG has the highest concentration in serum?

<p>IgG1 (A)</p> Signup and view all the answers

Which antibody class is primarily responsible for mucosal membrane immunity in the gastrointestinal and respiratory tracts?

<p>IgA (A)</p> Signup and view all the answers

How is the IgA dimer able to enter the gut lumen?

<p>It binds to the secretory component receptor on the basolateral surface of epithelial cells and is transported across. (D)</p> Signup and view all the answers

What is the primary function of IgA in the gut lumen?

<p>Agglutinating and regulating intestinal bacteria populations (D)</p> Signup and view all the answers

Which of the following functions is associated with IgG antibodies?

<p>Opsonization of pathogens, making them more attractive to phagocytic cells (A)</p> Signup and view all the answers

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