In this reaction we do release a glucose molecule, we take off the terminal glucose. In the process, we add up a spoil group without actually hydrolyzing an ATP molecule and this creates an energetically favorable process. So we essentially bypass the process of using an ATP molecule by releasing the glucose in the glucose one phosphate form. Now, the other reason why this reaction is product favorite is because inside our cells we generally have a much higher concentration of the orthophosphate reactive molecule than the glucose one phosphate product. In fact, the ratio of orthophosphate to this product is about 100 to one. And so because of that, because we have so much more of the reactants, that means that will drive this reaction toward the right side.