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Endocytosis
process by which a cell takes material into the cell by infolding of the cell membrane
Exocytosis
Process by which a cell releases large amounts of material
Phagocytosis
A type of endocytosis in which a cell engulfs large particles or whole cells
Pinocytosis
A type of endocytosis in which the cell ingests extracellular fluid and its dissolved solutes.
receptor-mediated endocytosis
, The movement of specific molecules into a cell by the inward budding of membranous vesicles
containing proteins with receptor sites specific to the molecules being taken in; enables a cell to acquire
bulk quantities of specific substances.
Metabolism
All of the chemical reactions that occur within an organism
Anabolic reactions (anabolism)
expend energy to build up molecules
Catabolic reactions (catabolism)
harvest energy by breaking down molecules
endergonic reaction
Reaction that absorbs free energy from its surroundings.