Fig. 3

The main pathways we consider in our Simplified Model of Energy Metabolism of a cell. The glucose (\(\mathrm {GLC}\)) enters inside the cell into the cytosol and takes part into the glycolysis composed by the two reactions \(\mathrm {HXK}\) and \(\mathrm {PYRK}\). The products of the glycolysis, \(\mathrm {PYR}\) and \(\mathrm {ATP}\), are then used into \(\mathrm {LDH}\) reaction, that generates \(\mathrm {LAC}\), into \(\mathrm {act}\) reaction, that describes the cellular activity producing \(\mathrm {ADP}\), and inside the mitochondria where the reaction denoted \(\mathrm {Mito}\) happens generating the major source of \(\mathrm {ATP}\) for the cell