Immunology Chapter 15
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Questions and Answers

What is the primary function of dendritic cells in the immune system?

  • To activate T cells through antigen presentation (correct)
  • To kill infected cells through antibody-dependent cellular cytotoxicity
  • To produce antibodies against antigens
  • To recognize and eliminate tumor cells
  • What is the main difference between Tε and Tч cells?

  • Tε cells are involved in cell-mediated immunity, while Tч cells are involved in humoral immunity
  • Tε cells recognize antigen in a MHC-restricted manner, while Tч cells recognize antigen in a non-MHC-restricted manner (correct)
  • Tε cells recognize antigen in a non-MHC-restricted manner, while Tч cells recognize antigen in a MHC-restricted manner
  • Tε cells are activated by dendritic cells, while Tч cells are activated by B cells
  • What is the role of central tolerance in the immune system?

  • To recognize and eliminate tumor cells
  • To prevent the activation of autoreactive T cells (correct)
  • To produce antibodies against antigens
  • To eliminate infected cells through antibody-dependent cellular cytotoxicity
  • What is the primary function of the lymphatic system in immunity?

    <p>To transport antigens to lymphoid organs for immune recognition</p> Signup and view all the answers

    What is the primary function of natural killer cells?

    <p>To recognize and eliminate tumor cells</p> Signup and view all the answers

    What is the significance of central and peripheral tolerance?

    <p>To eliminate self-reactive T cells</p> Signup and view all the answers

    How do TCRs contribute to the immune response?

    <p>By recognizing MHC molecules</p> Signup and view all the answers

    What is the outcome of antibody-antigen binding?

    <p>Neutralization of pathogens</p> Signup and view all the answers

    What is the role of CD markers in the immune response?

    <p>To distinguish between T cells and B cells</p> Signup and view all the answers

    What is the significance of clonal selection and expansion?

    <p>To generate a large number of antigen-specific immune cells</p> Signup and view all the answers

    Study Notes

    Immunity Overview

    • Cell-mediated and humoral immunity can be compared and contrasted
    • Central tolerance and peripheral tolerance are crucial for immune system function

    Immune Response

    • Primary response and secondary response can be defined and differentiated
    • Antibody-antigen binding leads to protective outcomes
    • The lymphatic system plays a vital role in immunity

    Clonal Selection and Expansion

    • The process of clonal selection and expansion can be outlined
    • T-cell receptors (TCRs), MHC molecules, and CD markers are essential components

    T Cell Activation

    • Dendritic cells activate T cells
    • Tε and Tч cells can be compared and contrasted in terms of antigen recognition
    • Tε cells activate B cells

    Immunoglobulins

    • There are five classes of immunoglobulins that can be compared and contrasted

    NK Cells

    • NK cells have two distinct protective roles in the immune system

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    Description

    Test your knowledge of the immune system! This quiz covers cell-mediated and humoral immunity, tolerance, antibody-antigen binding, and the role of lymphatic system and immune cells in protecting the body.

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