So our glycerol goes into glycolysis and we use glycerol to form pyruvate molecules, which then end up in the mitochondrial matrix where they are fed into our decarboxylation reaction, producing acetyl coenzyme A, which goes into the crept cycle and eventually on the electron transport chain to produce our ATP molecules. Now, what about the fatty acids? So the pathway that is followed by the fatty acids is slightly different. What happens to each fatty acid is the following. So the fatty acid goes onto the outer membrane of the mitochondria. So it goes onto the outer membrane.