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?

Pieces of peptide, including viral protein fragments, are displayed on the cell surface (C) Signup and view all the answers

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

To recognize and eliminate virally-infected cells (C) Signup and view all the answers

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

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 Signup and view all the answers

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