OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is defensive activities based on the action of pre-committed T-lymphocytes that move into action to kill the invader or activate other parts of the immune system through the production of chemicals which directly fight (act to kill) the antigen (microbe) or regulate immune response?
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Cell-Mediated Response
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Humoral Response
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Cytokine Products of Cells
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Chemical Mediators
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Explanation:
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: -The T and B lymphocytes (T and B Cells) are involved in the acquired or antigen-specific immune response given that they are the only cells in the organism able to recognize and respond specifically to each antigenic epitope.
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