receptor-mediated endocytosis

Receptor-mediated endocytosis is a process cells use to selectively intake specific substances from their environment. Proteins called receptors on the cell surface recognize and bind to target molecules, such as nutrients or signals. Once bound, the cell membrane folds inward, forming a pocket that encloses the receptor and its target. This pocket then pinches off, creating a vesicle that carries the substances into the cell. This targeted mechanism allows cells to efficiently import necessary molecules while maintaining control over what enters, supporting proper cell function and communication.