primary immune responses

    Cards (4)

    • activation of T helper cells
      bacterium engulfed by macrophage
      macrophage becomes APC
      APC binds to T helper cell
      T helper cell activates and divides into T memory cells and T helper cells
    • what is APC
      antigen presenting cell
    • clonal selection
      antigen binds to B cell
      B cell becomes APC
      activated T helper cell bind to APC
      T helper cells produce cytokines that stimulate the B cell
      B cells divide into B memory and effector cells
      B effector cells differentiate into plasma cells
      plasma cells release antibodies
    • role of T killer cells
      bacterium infects host cell
      host cell becomes APC
      T killer cell binds to APC
      T killer cells divide into active and memory T killer cells
      active T killer cells bind to APC
      T killer cell release chemicals that destroy infected cell
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