And so this is our mitochondria. And inside the mitochondria, we have processes such as Pyruvate decarboxylation as well as the citric acid cycle and the electron transport chain found on the inner membrane of that mitochondria actually uses those oxygen molecules to ultimately transform the Pyruvate into carbon dioxide molecules as well as ATP molecules. In fact, the majority of ATP molecules produced by our cells are formed in the process that takes place inside the mitochondria. Now, this is known as aerobic cellular respiration. An aerobic cellular respiration includes not only the processes that take place in the mitochondria, but also actually includes glycolysis itself. But glycolysis is itself an anaerobic process.