an octahedron: basically two square based pyramids with their bases stuck together.
Most eukaryotic cells have mitochondria, which produce ATP from products of the citric acid cycle, fatty acid oxidation, and amino acid oxidation. At the mitochondrial inner membrane, electrons from NADH and succinate pass through the electron transport chain to oxygen, which is reduced to water.
electron transport chain. last step in cellular respiration- oxidative phosphorylization, i think! produces most of the ATP needed by the cell by transporting electrons through a wheel which turns and creates more energy. What Is Etc Biology. Electron Transport Chain. It's where ATP is made via oxidative phosphorylation.