QUESTION 11 How is the immune system able to recognize a limitless number of different antigens and epitopes?

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QUESTION 11 How is the immune system able to recognize a limitless number of different antigens and epitopes? While each lymphocyte carries receptors that recognize only one type of epitope, the immune system produces a wide variety of lymphocytes each of which carries unique receptors A genetic “memory” of the pathogens your parents encountered (and their parents and so on) is passed on to each generation, increasing the number of possible responses over time. Each lymphocyte is coated with many different receptors, each of which recognizes a different epitope. if a lymphocyte encounters an antigen it does not recognize, it immediately switches receptors until it finds one that is a match Each lymphocyte is coated with many different receptors, each of which recognizes a different epitope AND the immune system produces a wide variety of lymphocytes. QUESTION 23 The two-signal activation process for T cells includes the presence of a superantigen and the presence of appropriate antibodies the presence of a superantigen AND binding between co-stimulatory proteins on the T cell and APC surfaces interaction of the T-cell receptor with the MHC-antigen complex on the APC AND binding between co-stimulatory proteins on the T cell and APC surfaces. the presence of antibodies AND binding between co-stimulatory proteins on the T cell and APC surfaces interaction of the T-cell receptor with the MHc-antigen complex on the APC AND the presence of a superantigen QUESTION 25 1 poins What is the role of MHCI in the immune response? MHC I is found on all body cells except red blood cells and presents a sample of cellular proteins, including those of any intracellular pathogens, to T cells MHCI presents a sample of cellular proteins, including those of any intracellular pathogens, to T cells MHC I is found on all body cells except red blood cells MHC I is found only on antigen-presenting cells MHC I is found only on antigen-presenting cells and presents a sample of cellular proteins, including those of any intracellular pathogens, to T cells.

 
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