Well, kinase means if it's four late. And so we have to have an ATP molecule. And fructose means that the substrate molecule to this enzyme is a fructose. So we have our fructose carbon 12345 and six are fructose and fructose kinase. Fructoseinase basically uses the ATP suposphorylate carbon number one, and we form fructose one phosphate. We also form the ATP as well as the H. Now, what is the purpose of this step number one?