transport by vesicles: endo and exocytosis

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7 Terms

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vesicles

folds of plasma membrane that fuse and pinch off macromolecules for transport

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endocytosis

The process in which vesicles enclose around macromolecules

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phagocytosis

The ingestion of bacteria or dead cell remnants, becoming a phagosome

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pinocytosis

The fusion and entrapment of extracellular fluid and its dissolved contents

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transcytosis

Where pinocytotic vesicles move to the opposite cell surface and fuse with the membrane, releasing their contents outside of the cell

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clathrin

a polypeptide on the surface of cytoplasmic proteins, that pinches off into the cytoplasm as a coated vesicle

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caveolae

a type of receptor mediated invagination which involves a family of intergral membrane proteins called caveolins