And that's why we say they have a reciprocal function, they're opposite in what they actually do. So now what happens is the FDPH too, because it's active, it causes the defasphorylation, it removes that phosphoryl group from that fructose, fructose two six bisphosphate to form that fructose six phosphate. So now that we know what this key element is, the fact that we have this bifunctional allosteric enzyme found in the liver, in kidney cells that basically is used to regulate this process of glycolysis and gluconeogenesis, let's actually see how this all takes place. And essentially we want to basically compare two different conditions. One condition is when we have high blood glucose levels. The other condition is when we have low blood glucose levels.