This process is the cause of bread rising, and also produces the alcohol in beer and wine. Bacteria Electrons are transferred to pyruvate producing lactic acid. This reaction is important in the fermentation of milk to form cheese. The same reaction occurs in our muscles during strenuous exercise. Mitochondria Inner membrane Folded into Cristae and contains electron transport systems and oxidative phosphorylation.
Cycle occurs in the matrix of the mitochondria.
Reactions of glycolysis plus the citric acid cycle. Fats and amino acids can also be converted to acetyl CoA and are metabolized in this cycle. The electrons are finally donated to oxygen forming water. Electron transport and oxidative phosphorylation. Net yield is 38 ATP, although some mitochondria use two of the ATP for transporting pyruvate.