Ephedra vs. Ephedrine alkaloids. Ephedrine alkaloids being banned isn't the end of ephedra. There are no many products available containing ephedra extract, which is a different version of the ephedra then the one that contained ephedra alkaloids. The benefit of this ephedra vs ephedrine alkaloids is that it doesn't cause the terrible jitters that was almost always associated with ephedrine alkaloids.
How many ATP are produced per 1 molecule of glucose in cellular respiration? If cellular respiration occurs in the presence of oxygen, then there is a net gain of 36 ATP molecules.
Fermentation is less efficient at using the energy from glucose since 2 ATP are produced per glucose, compared to the 38 ATP per glucose produced by aerobic respiration. This is because the waste products of fermentation still contain plenty of energy. Ethanol, for example, can be used in gasoline (petrol) solutions. Glycolytic ATP, however, is created more quickly. For prokaryotes to continue a rapid growth rate when they are shifted from an aerobic