You werenât a âProject Managerâ in the 80âs and 90âs, but when something went good or bad, everybody else stepped backwards, and you were the one left. Project managers were the only ones who could talk about the process, not just the product. And, usually, you were the person who had the charm to do it.
Fermentation is less efficient at using the energy from glucose: only 2 ATP are produced per glucose, compared to the 38 ATP per glucose nominally produced by aerobic respiration. This is because the waste products of fermentation still contain chemical potential energy that can be released by oxidation.
Most of the ATP for aerobic respiration is produced during the  Krebs Cycle, also called the citric acid cycle, which breaks down pyruvate, the end product of glycolysis, to produce ATP. This process is duplicated twice so it can produce twice as many ATP as the cycles that come before it.