Innate Lymphocytes Quiz
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Questions and Answers

Which type of lymphocyte is most abundant in the human liver?

  • Classical T cells
  • MAIT cells (correct)
  • B-1 cells
  • NK-T cells
  • What is the unifying characteristic of the lymphocytes that have some features of T and B lymphocytes?

  • They recognize microbial lipids bound to a class I MHC–related molecule called CD1
  • They are present in mucosal tissues
  • They express somatically rearranged antigen receptors with limited diversity (correct)
  • They produce antibodies in response to microbes and microbial toxins
  • What do natural antibodies found in the blood of normal individuals without specific immunization target?

  • Bacterial vitamin B metabolites
  • Microbial lipids bound to CD1
  • Microbes and microbial toxins that pass through the walls of the intestine (correct)
  • All of the above
  • Which type of B lymphocyte is present at the edges of lymphoid follicles in the spleen and other organs and is involved in rapid antibody responses to blood-borne polysaccharide-rich microbes?

    <p>Marginal-zone B cells</p> Signup and view all the answers

    Which type of cells respond to infections in ways that are characteristic of adaptive immunity but have features of innate immunity?

    <p>B-1 cells</p> Signup and view all the answers

    Which type of antibodies are specific for carbohydrates that are present in the cell walls of many bacteria and for ABO blood group antigens found on red blood cells?

    <p>IgM antibodies</p> Signup and view all the answers

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