Phosphate Is Important for the Structure of Bone and Teeth, and Organic Phosphate Serves as Part of the Cell Membrane and Several Intracellular Components

Phosphate concentrations are controlled by the same systems that control calcium concentrations. Inorganic phosphate in blood serves as the source of phosphate, which is important for the structure of bone and teeth. Inorganic phosphate also functions as an important H’ buffering system in blood. Organic phosphate is an important part of the cell, including the plasma membrane and intracellular components, such as nucleic acids, adenosine triphosphate, and adenosine monophosphate.