Answer: Via coenzymatic complexes.
Step-by-step explanation:
Inorganic phosophate (Pi) is present in coenzymatic complexes, such as NAD, NADP and FAD, which govern important metabolic pathways of decarboxylation and oxidation reactions in the energy production process. It is also part of phosphoproteins, phosphocreatine, as a reservoir of energy and nucleoproteins.