And we, and we'll focus on that in a future lecture. So ultimately what I'd like to focus on in this lecture is skeleton muscle cells and how glycolysis in skeleton muscle cells is actually regulated. Well, what's the entire point of using glycolysis in skeleton muscle cells? Well, skeletal muscle cells basically want to contract skeleton muscle tissue and to contract those active MIT and filaments. What must happen is we have to have ATP. And so the predominant role that glycolysis plays in skeleton muscle cells is to actually form generate those ATP molecules.