A-Level Biology OCR A
Pathogen Phagocytes Phagosome Lysosome Describe Stages Phagocytosis Phagocytosis
Front |
Describe the stages of phagocytosis. |
Back |
Phagocytosis:- Pathogens produce chemicals that attract phagocytes
- Phagocytes recognise non-self antigens on the pathogen - not specific, just recognising self or non self
- Phagocyte engulfs the pathogen and encloses it in a vacuole - phagosome
- Phagosome combines with lysosome to form phagolysosome
- Enzymes from lysosome digest and destroy pathogen
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A-Level Biology OCR A