Cytotoxic T Cells Quiz
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Questions and Answers

What is the primary role of Cytotoxic T Cells?

  • Aiding in blood clotting processes
  • Recognizing and attacking virally infected cells and tumor cells (correct)
  • Regulating inflammation in the body
  • Producing antibodies to neutralize pathogens
  • Where do Cytotoxic T Cells mature before being released into the blood?

  • Spleen
  • Bone marrow
  • Lymph nodes
  • Thymus (correct)
  • What do Cytotoxic T Cells bind with on the surface of their own nucleated cells, except for macrophages?

  • Major Histocompatibility Complex-II (MHC-II)
  • Major Histocompatibility Complex-I (MHC-I) (correct)
  • Interferon-gamma (IFN-y)
  • Tumor Necrosis Factor - alpha (TF-a)
  • Which type of co-receptor do Cytotoxic T Cells develop along with their T Cell Receptor (TCR) during maturation?

    <p>CD8 (B)</p> Signup and view all the answers

    What type of chemical signals are required for the activation of Cytotoxic T Cells?

    <p>From dendritic and T helper cells (C)</p> Signup and view all the answers

    What do Cytotoxic T Cells release to cause lysis of the infected target cell?

    <p>Perforin proteins and granzyme (D)</p> Signup and view all the answers

    What type of immune cells do Cytotoxic T Cells belong to?

    <p>Lymphocyte (D)</p> Signup and view all the answers

    Which co-receptor do Cytotoxic T Cells develop during their maturation process?

    <p>CD8 (A)</p> Signup and view all the answers

    Where are Cytotoxic T Cells produced?

    <p>Thymus (B)</p> Signup and view all the answers

    What do Cytotoxic T Cells release when encountering virally infected cells?

    <p>Tumor Necrosis Factor - alpha (TF-a) (B)</p> Signup and view all the answers

    What do Cytotoxic T Cells bind with on the surface of their own nucleated cells, except for macrophages?

    <p>Major Histocompatibility Complex-I (MHC-I) (A)</p> Signup and view all the answers

    Which of these chemical signals are required for the activation of Cytotoxic T Cells?

    <p>Interferon-gamma (IFN-y) (A)</p> Signup and view all the answers

    What is the primary role of Cytotoxic T Cells?

    <p>Recognize virally infected cells and tumor cells (C)</p> Signup and view all the answers

    Which proteins do Cytotoxic T Cells release to cause lysis of the infected target cell?

    <p>Perforin and Granzyme (B)</p> Signup and view all the answers

    Where do Cytotoxic T Cells mature before being released into the blood?

    <p>Thymus (C)</p> Signup and view all the answers

    Study Notes

    Cytotoxic T Cells

    • Primary role: to recognize and eliminate infected cells or tumor cells by inducing apoptosis (programmed cell death)
    • Maturation: thymus, before being released into the blood
    • Self-binding: bind with MHC I (Major Histocompatibility Complex I) on the surface of their own nucleated cells, except for macrophages
    • Co-receptor development: CD8 (Cluster of Differentiation 8) along with their T Cell Receptor (TCR) during maturation
    • Activation signals: require IL-2 (Interleukin 2) and other cytokines for activation
    • Lysis mechanism: release cytotoxins, such as perforin and granzymes, to cause lysis of the infected target cell
    • Immune cell classification: belong to the T cell type of immune cells
    • Co-receptor development: CD8 during maturation process
    • Production site: thymus
    • Response to viral infection: release cytotoxins when encountering virally infected cells
    • Self-binding: bind with MHC I on the surface of their own nucleated cells, except for macrophages
    • Activation signals: require IL-2 and other cytokines for activation
    • Primary role: to recognize and eliminate infected cells or tumor cells by inducing apoptosis
    • Lysis mechanism: release perforin and granzymes to cause lysis of the infected target cell

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    Description

    Test your knowledge about Cytotoxic T Cells, a group of immune cells that recognize virally infected cells and tumor cells. Learn about their development, maturation process, and functions in the immune system.

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