So the simplest and the most common monomer of sugar of our carbohydrate is a glucose. And we can store glucose in our body in the form of glycogen. And when we need to, we break down glucose glycogen into our individual glucose molecules which can be used via the process of aerobic cellular respiration to basically break down the glucose into ATP molecules. So we have the glycolysis process that breaks down glucose into two pyruvate molecules. Those eventually go into the mitochondrial matrix where they undergo a decarboxylation reaction to form a Ctilt coenzyme a, which is fed into the citric acid cycle. And the citric acid cycle ultimately produces NADH molecules and fadh two molecules.