While in the case of skeleton muscle cells, once they break down the glycogen into glucose, they take that glucose and build TP molecules to carry out voluntary motion. Now, the question is, how do we go in reverse? How do we take the glucose monomers, glucose precursors and build glycogen? And why would our body actually want to carry out that process in the first place? Well, let's suppose we ingest the meal that is rich in carbohydrates. And so what that means is inside our blood plasma, we're going to have a rise in blood glucose levels.