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Cell B Specific Complementary Pathogen Antigen Receptor Binds

Front How does humoral immunity work?
Back - specific B cell with complementary receptor binds to pathogen antigen
- antigen enters cell by endocytosis
- presented on cell membrane

- specific helper T cell with complementary receptor binds to antigen
- activates B cell
- activated T cell releases cytokines

- clonal selection
- cytokines stimulate B cell to divide by mitosis, differentiating into plasma cells
- cloned plasma cells secrete specific antibody complementary to pathogen
- antibody attaches to antigens, destroys pathogen

- some B cells differentiate into memory cells

Tags: immunity

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