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Animation: Cytotoxic T-Cell Activity Against Target Cells (Quiz 2)
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View the animation below, then complete the quiz to test your knowledge of the concept.






1Cytotoxic T-cells attack
A)viruses.
B)bacteria.
C)cells that display foreign proteins on their surface.
D)cells that display normal proteins on their surface.
E)both A and B



2Cytotoxic T-cells produce _______ which creates holes in the cell membranes of target cells.
A)antibody
B)perforin
C)cytokinin
D)lysozyme
E)complement



3Cytotoxic T-cells interact with target cells by recognizing
A)foreign proteins only.
B)MHC proteins only.
C)foreign protein-MHC protein complexes.
D)either foreign proteins or MHC proteins.
E)neither foreign proteins nor MHC proteins.



4Cytotoxic T-cells interact with Class II major histocompatibility complex (MHC) proteins.
A)True
B)False



5When a virus infects a cell, some of the viral proteins are broken down into peptide fragments.
A)True
B)False







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