There are several types of endocytosis, including phagocytosis, pinocytosis, and receptor-mediated endocytosis. Each type is distinguished by the size of the particles it internalizes and the mechanisms involved:
Phagocytosis: Often referred to as "cell eating," this process is used to engulf large particles or pathogens. Pinocytosis: Known as "cell drinking," it involves the uptake of fluids and small molecules. Receptor-mediated endocytosis: This highly specific process relies on receptors to identify and internalize specific substances.