FOREIGN ANTIGENS TRIGGER AN IMMUNE RESPONSE Antigens are molecules found on the surface of cells. If a pathogen invades the body the antigens on the cell surface are identified as foreign. THE IMMUNE SYSTEM IS ACTIVATED. FIRSTLY PHAGOCYTES TRIGGER AN IMMUNE RESPONSE
- The phagocyte recognizes the antigens on the pathogen
- The cytoplasm moves around the pathogen engulfing it
- A lymosome fuses with the vacuole and break down the pathogen
- The phagocyte presents the pathogen's antigens on the surface to activate the immune system cells.
T Cells are then activated
- This is a type of white blood cell
- It has proteins on its surface that bind to…