The Immune System's Response to Viral Infections Quiz
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Questions and Answers

What is the role of MHC class I proteins in the immune response to viruses?

  • They directly attack virally-infected cells
  • They prevent the immune system from recognizing infected cells
  • They produce toxic mediators to kill infected cells
  • They display pieces of protein from inside the infected cell on the cell surface (correct)
  • What is the function of cytotoxic T cells in the immune response to viruses?

  • They prevent viruses from entering the body
  • They produce antibodies to neutralize viruses
  • They regulate the body's temperature during a viral infection
  • They kill cells that are infected with viruses (correct)
  • How do cytotoxic T cells recognize virally-infected cells?

  • They release cytokines to attract infected cells
  • They have specialized proteins on their surface (correct)
  • They directly engulf infected cells
  • They inhibit the function of infected cells
  • What happens when a cell is infected with a virus in terms of MHC class I proteins?

    <p>Pieces of peptide, including viral protein fragments, are displayed on the cell surface</p> Signup and view all the answers

    What is the primary role of T cells in the immune response to viruses?

    <p>To recognize and eliminate virally-infected cells</p> Signup and view all the answers

    Match the following components of the immune system with their functions:

    <p>Cytotoxic T cell = Kills cells infected with viruses MHC class I proteins = Display pieces of protein from inside the cell T cell = Circulates looking for infections Toxic mediators = Used by cytotoxic T cells to kill infected cells</p> Signup and view all the answers

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