OXIDATIVE PHOSPHORYLATION AND ELECTRON TRANSPORT Adenisine Triphosphate (ATP)??-? The molecule from which cells derive energy. Comprised of an adenisine molecule bonded to three phosphates. Each phosphate bond contains energy, especially the third bond. By breaking that one bond and reducing ATP to adenisine?diphosphate (ADP), the cell can get the energy to carry out its various processes. Electron transport chain??-? Term used to describe the flow of electrons generated by the oxidation of NADH and FADH2. Responsible for establishing an electrochemical gradient across the inner mitochondrial membrane that powers the synthesis of ATP in oxidative phosphorylation.