OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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antibodies.
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able to kill virus-infected cells.
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part of the humoral immune response.
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part of the second line of the immune defence.
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Detailed explanation-1: -Armed effector cytotoxic CD8 T cells are essential in host defense against pathogens that live in the cytosol, the commonest of which are viruses. These cytotoxic T cells can kill any cell harboring such pathogens by recognizing foreign peptides that are transported to the cell surface bound to MHC class I molecules.
Detailed explanation-2: -Cytotoxic T cells (CTLs) recognize antigenic peptides presented by major histocompatibility complex (MHC) class I antigens on the surface of infected cells.
Detailed explanation-3: -A type of immune cell that can kill certain cells, including foreign cells, cancer cells, and cells infected with a virus. Cytotoxic T cells can be separated from other blood cells, grown in the laboratory, and then given to a patient to kill cancer cells.