Weathering of rocks makes phosphate ions (PO4= and HPO4=) available to plants through uptake from the soil. The mineral apatite contains a small amount of phosphorous, although this is enough for all living things to utilize.
During normal calcification, a major influx of calcium and phosphate ions into the cells accompanies cellular apoptosis (genetically determined self-destruction) and matrix vesicle formation.
ATPases are a class of enzymes that catalyze the decomposition of adenosine triphosphate (ATP) into adenosine diphosphate (ADP) and a free phosphate ion.
Produced by adding Pi to ADP → phosphorylation
Breaks down to ADP (adenosine diphosphate) and Pi (inorganic phosphate ion) by hydrolysis
ATP is useful as an immediate energy source/carrier because ...
The value of fluoride (in ionized form, F−) was first recognized as a preventive for dental caries (cavities). This makes sense because fluoride ions are incorporated along with calcium and phosphate ions in the crystalline structure of which ...
 See also: Trans, Action, ATP, Molecule, Organ
  
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