Why do white blood cells use endocytosis?
White blood cells use endocytosis to engulf any pathogens such as bacteria. By trapping the bacteria, the lysosomes in the cell can destroy the pathogen. A lysosome is a vacuole in a cell that is full of digestive enzymes. The Lysosome digests old cell organelles, invaders, and food. This explains why White Blood Cells are part of the immune system.
