Kinetics article chemistry kinetics 86 metabolism 43 pH 25 Hydrogen-Ion Concentration 21 Oxidation-Reduction 18 oxidation reduction reaction 18 animal 17 enzymology 17 chemical structure 16 unclassified drug 13 Animals 12 Electrodes 12 Water 12 electrode 12 water 12 Molecular Structure 11 controlled study 11 ligand 11 Algorithms 10 Thermodynamics 10 algorithm 10 nonhuman 10 thermodynamics 10 Chemistry 9 Humans 9 Models, Biological 9 biological model 9