U3 AOS 1: Protein Secretory Pathway

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Ribosome

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A molecular machine found within all living cells that performs biological protein synthesis (translation).

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Bulk transport

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The process by which large particles and macromolecules are transported through plasma membranes. Inc. exocytosis and endocytosis.

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Exocytosis

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A process by which the contents of a cell vacuole are released to the exterior through fusion of the vacuole membrane with the cell membrane.

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Vesicle

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A small structure within a cell, consisting of fluid enclosed by a lipid bilayer, used to transport materials.

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Secretory products

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Substances that are produced and discharged from a cell, gland, or organ for a particular function in the organism or for excretion.

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Plasma membrane

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The membrane found in all cells that separates the interior of the cell from the outside environment.

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Rough endoplasmic reticulum

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A network of tubular membranes within the cytoplasm of the cell, occurring either with a smooth surface or studded with ribosomes involved in the transport of materials.

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Golgi apparatus

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A complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.

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Transport vesicle

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A vesicle that moves molecules between locations inside the cell.