Phagocytosis
- Created by: emily.tx
- Created on: 03-05-17 12:05
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- Pathogens produce chemicals which attract phagocytes
- Phagocyte- specialised white blood cell that engulf and destroy pathogens
- Stage 1
- Phagocytes recognise non-human proteins on a pathogen
- This is a response to a cell or organism that is non-self (not to a specific type of pathogen)
- Stage 2
- The phagocyte engulfs the pathogen where it is enclosed in the vacuole
- This is called a Phagosome
- Stage 3
- The phagosome combines with a lysosome to form a phagolysosome
- A lysosome is a specialised vesicle that contains hydrolytic enzymes for the breakdown of waste in a cell
- Stage 4
- Enzymes from the lysosome digest and destroy the pathogen
- Stage 5
- The digested pathogen absorbed by phagocyte antigens combine with the MHC in the cytoplasm
- MHC- Major histocompatibility complex
- Stage 6
- MHC/antigen is displayed on the phagocyte membrane to make an APC
- APC- Antigen presenting cell
- Stage 7
- Phagocytes recognise non-human proteins on a pathogen
- This is a response to a cell or organism that is non-self (not to a specific type of pathogen)
- Stage 2
- The phagocyte engulfs the pathogen where it is enclosed in the vacuole
- This is called a Phagosome
- Stage 3
- The phagosome combines with a lysosome to form a phagolysosome
- A lysosome is a specialised vesicle that contains hydrolytic enzymes for the breakdown of waste in a cell
- Stage 4
- Enzymes from the lysosome digest and destroy the pathogen
- Stage 5
- The digested pathogen absorbed by phagocyte antigens combine with the MHC in the cytoplasm
- MHC- Major histocompatibility complex
- Stage 6
- MHC/antigen is displayed on the phagocyte membrane to make an APC
- APC- Antigen presenting cell
- Stage 7
- A key process in the non-specific and specific defencesyste,
- Phagocytosis
- Pathogens produce chemicals which attract phagocytes
- Phagocyte- specialised white blood cell that engulf and destroy pathogens
- Stage 1
- Pathogens produce chemicals which attract phagocytes
- Phagocytosis
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