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Endocytosis is the transport of macromolecules – large particles – and small cells into eukaryotic cells
Occurs through engulfment, and vesicle formation, from the cell membrane.
Phagocytosis and pinocytosis are types of endocytosis.
In receptor-mediated endocytosis, a specific receptor protein on the plasma membrane binds to a particular macromolecule.
In exocytosis, materials in vesicles are secreted from the cell when the vesicles fuse with the plasma membrane.
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