Here's a breakdown:
* Phagocytosis (from Greek "phagein" - to eat, and "kytos" - cell) is a type of endocytosis, which is the process of bringing material into the cell by engulfing it.
* In phagocytosis, the cell membrane surrounds the large food particle, forming a pocket called a phagosome.
* The phagosome then detaches from the cell membrane and moves into the cell's cytoplasm.
* Once inside the cell, the phagosome fuses with a lysosome, which contains digestive enzymes that break down the food particle.
This process is crucial for many cells, including immune cells like macrophages and neutrophils, which engulf and destroy bacteria, viruses, and cellular debris.