<Dd> (RO - P (O) - O-P (O) - O - PO) + H 2O → (RO - PO) + (O P-O - PO) + 2 H </Dd> <P> With a typical intracellular concentration of 1--10 mM, ATP is abundant . The dephosphorylation of ATP and rephosphorylation of ADP and AMP occur repeatedly in the course of aerobic metabolism . </P> <P> ATP can be produced by a number of distinct cellular processes; the three main pathways in eukaryotes are (1) glycolysis, (2) the citric acid cycle / oxidative phosphorylation, and (3) beta - oxidation . The overall process of oxidizing glucose to carbon dioxide, the combination of pathways 1 and 2, is known as cellular respiration, produces about 30 equivalents of ATP from each molecule of glucose . </P> <P> ATP production by a non-photosynthetic aerobic eukaryote occurs mainly in the mitochondria, which comprise nearly 25% of the volume of a typical cell . </P>

What type of biomolecule and monomer is atp