And then all the NADH and fadh two molecules produced in aerobic cellular respiration go onto the electron transport chain to basically form ATP molecules. Now, we know in aerobic cellular respiration one glucose molecule produces a net of 36 ATP molecules. Now, the problem is, glucose is not the only type of molecule from which we can actually obtain our energy. Another very common type of molecule from which we can obtain energy are fats or is fat. Now, in fact, the majority of the energy that is stored in the human body is stored in fat, in special type of fat molecules known as triglycerides. So triglycerides are basically three fatty acids attached to a single glycerol backbone.