2. Explain how such a tremendous diversity of IGG’s can be produced by plasma cells in response to an equal diversity of antigens. - Immunoglobulins are one of two important protein molecules of the immune system that engage in the recognition of pathogens or other foreign material. Antigen recognition is a pivotal process in the immune response. Antigen recognition allows the immune system to recognize each antigen with tremendous specificity in order …show more content…
These antibodies then begin to bind to antigens on the patients own cell surface. Once these are binded they are recognized as intrinsic or extrinsic. During this phase the cells can act as antigen presenting cells. Another form of Type 2 hypersensitivity is called antibody-dependent cell-mediated cytotoxicity. (The reactions ran can take hours to a day.) Type 4 hypersensitivity which is an independent antibody and its reactions take 2 to 3 days. Unlike others, Type 4 hypersensitivity is not antibody mediated but is a type of cell mediated