NATS 1670 Lecture Notes - Lecture 7: Streptococcus, Phagocyte, B-Cell Receptor
21 Apr 2016
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Document Summary
The immune system can remember invaders and react more quickly to second exposures to infection: only an exposure to the same molecule/organism will activate this memory response. Normally, the specific immune system distinguishes between self and non self and only reacts again non self. Antigens are substances (specific molecule/organism) that induce a specific immune response and subsequently react with the products of a specific immune response. Antibodies (ab, immunoglobulins, ig) are protein molecules that are produced by plasma cells in response to an antigen and can bind specifically to that antigen. Antibodies recognize foreign pathogens and help to destroy them. Neutralization: ab neutralizes viruses, binds to molecules on their surface bacteria binds to molecules on their surface such as flagellum. The immune system can remember invaders and react more quickly to second exposures to infection. Only an exposure to the same molecule/organism will activate this memory response.
