Endocytosis

Endocytosis is a process by which cells absorb materials from their environment. The cell membrane folds around substances like nutrients or fluids, forming a pocket that encloses them. This pocket then pinches off inside the cell, creating a vesicle—like a tiny bubble—that transports the substance into the cell. Endocytosis allows cells to intake large molecules, fluids, or even other cells, enabling them to gather necessary resources or respond to signals. It’s a vital mechanism for maintaining cellular function and communication within the body.