{ from http://bcs.whfreeman.com/thelifewire8e/pages/bcs-main_body.asp?s=05000&n=00010&i=05010.01&v=&o=&ns=0&uid=0&rau=0 }
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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