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Not to be confused with phosphate soda or phosphonate. A phosphate (PO3â. 4) is an inorganic chemical and a salt of phosphoric acid. In organic chemistry, a phosphate, or organophosphate, is an ester of phosphoric acid. Of the various phosphoric acids and phosphates, organic phosphates are important in biochemistry and biogeochemistry (ecology), and inorganic phosphates are mined to obtain phosphorus for use in agriculture and industry.
Adenosine triphosphate (ATP) is a high energy molecule with 3 phosphate groups that a cell uses to extract and store energy from other molecules such as carbohydrates. Adenosine diphosphate (ADP) is a low-energy molecule that is one phosphate group less of an ATP molecule. ADP chemically bonds with a phosphate group to form ATP to function as such.