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MHC Molecules and T Lymphocyte Recognition Quiz
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MHC Molecules and T Lymphocyte Recognition Quiz

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Questions and Answers

Which of the following is true regarding antigen presentation to activate effector functions of T cells?

  • Only humoral immune responses require antigen presentation to activate T cell effector functions
  • T cells do not require antigens to activate effector functions
  • Antigen presentation can be done by various kinds of APCs besides dendritic cells (correct)
  • Only dendritic cells can present antigens to activate T cell effector functions
  • What is the function of MHC molecules in antigen presentation to T cells?

  • To activate effector functions of T cells
  • To display peptides derived from protein antigens (correct)
  • To capture and present antigens to trigger immune responses
  • To produce protein antigens
  • How does the antigen receptor of a T cell recognize a complex of peptide antigen displayed by an MHC molecule?

  • By recognizing only some amino acid residues of the peptide and the MHC molecule (correct)
  • By recognizing all amino acid residues of the peptide and the MHC molecule
  • By recognizing only polymorphic residues of the MHC molecule
  • By recognizing only anchor residues of the peptide
  • Which of the following is true about MHC restriction?

    <p>MHC molecules function as the peptide display molecules of the immune system</p> Signup and view all the answers

    What is the role of antigen-presenting cells (APCs)?

    <p>To capture microbial antigens and display them for recognition by T lymphocytes</p> Signup and view all the answers

    What is the significance of MHC restriction?

    <p>It ensures that T cells recognize only peptides displayed by their own MHC molecules</p> Signup and view all the answers

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