T-lymphocytes & Cell Mediated Immunity (AQA A-Level Biology): Flashcards
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Immunity
Immunity
Body's ability to resist infection by defending against pathogens & their toxins
Antigen
Antigen
Non-self (foreign) substance that triggers an immune response
T lymphocyte maturation site
T lymphocyte maturation site
Thymus gland
B lymphocyte maturation site
B lymphocyte maturation site
Bone marrow
T cell immunity type
T cell immunity type
Cell-mediated immunity
B cell immunity type
B cell immunity type
Humoral immunity
Cell-mediated immunity targets
Cell-mediated immunity targets
Infected body cells, cancer cells & transplanted cells
Helper T cell function
Helper T cell function
Stimulates phagocytes, B cells & activates cytotoxic T cells
Cytotoxic T cell function
Cytotoxic T cell function
Destroys abnormal/infected cells using perforin
Perforin action
Perforin action
Creates holes in cell membrane, making it permeable & killing cell