Now, if we have a very high level of glucose, that glucose is toxic if it remains at that high level. And it's the job of the liver cells to uptake all that glucose to maintain the proper level. And so the fact that inside the liver cells, we not only have that hexagoninas, but in addition, we also have that glucokinase, both of these two is will basically work together to take in as many glucose molecules as possible and to transform those glucose molecules, for instance, into glycogen, so that all those glucose molecules can be removed from the blood. So we see that when blood glucose levels are high, the glucokinates make sure that the liver cells transform that glucose into glycogen and fatty acids and other building blocks, so that all those glucose molecules are removed from the blood. Now, that's the first important reason why we have gluco kinase in liver cells and we don't have in muscle cells, because muscle cells, the function of muscle cells is to simply move our, create voluntary motion. But liver cells have a much more diverse biochemical role.