Apedia

A-Level Biology OCR A

Pathogen Phagocytes Phagosome Lysosome Describe Stages Phagocytosis Phagocytosis

The summary describes the stages of phagocytosis: attraction of phagocytes, recognition of non-self antigens, engulfment into a phagosome, fusion with lysosome to form a phagolysosome, and digestion of the pathogen.

O resumo descreve as etapas da fagocitose: atração de fagócitos, reconhecimento de antígenos não próprios, engolfamento do patógeno em um fagossoma, fusão com lisossoma para formar fagolisossoma e digestão do patógeno.

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

Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.

Next card: Major histocompatibility complex macrophage antigens pathogen surface membrane

Previous card: Give types phagocytes neutrophils macrophages

Up to card list: A-Level Biology OCR A