Steph

Phagocytosis script Phagocytosis is the process by which a phagocyte ingests and digests foreign particles. Macrophages, eosinophils, neutrophils are white blood cells capable of phagocytosis. When a microbe invades the body the white blood cell detects the microbe by chemotaxis, that is, the chemical they give off. The phagocyte then sticks the microbe to its surface (adherence) and begins to engulf it. The phagocyte engulfs the microbe by wrapping its pseudopodia around it (ingestion). This process forms a vesicle around the invader. A phagosome is then formed (phagocytic vesicle) and the microbe is enclosed in the membrane. The phagocyte then fuses with a lysosome forming a phagolysosome and the lysosome release enzymes that digest the microbe (digestion). This process takes 10-30 minutes. The bacterium is broken down and the indigestible material is released from the body via excosytosis.