Biology / Unit 13 Bio 3273 short lesson, about 20 seconds
Adaptive Immunity: Humoral versus Cell-Mediated
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The idea
Adaptive immunity divides into humoral immunity, driven by antibody-producing B cells acting outside cells, and cell-mediated immunity, driven by T cells acting on infected cells directly.
In practice
Circulating antibodies handle a bacterial toxin, while a cytotoxic T cell handles a virus hiding inside a cell.
Where people slip
The two branches work together against one infection, not as separate, unrelated systems.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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