And the second point is, by adding this polar component, we trap that glucose in a cell, it will not be able to exit that cell because one, it can't pass the membrane and B, it cannot use any of those transport membrane proteins because its structure is different. Now let's move on to step two. In step two, the goal is to basically take that glucose phosphate and transform it into an isomer, into fructose six phosphate. Why? Well, because in stage two we basically want to produce two identical three carbon molecules. And to produce those two identical three carbon molecules, we have to have symmetry in our molecules.