what is phagocytosis
Phagocytosis is a process used by cells to engulf and subsequently ingest particles of nutrients or bacteria. This process is a very important part of cell function, allowing cells to grab vital nutrients and allowing the body to protect itself from harmful bacteria.hagocytosis is important in the creation of food vacuoles for unicellular organisms, such as the paramecium. Phagocytosis helps the body protect itself from harmful bacteria. Phagocytes dispose of cells that have undergone apoptosis, or programmed cell death. View slideshow of images above.