But notice that the energy of the reactants and products does not change. So when we calculate the change in Gibbs, the energy of this reaction or our change in enthalpy between the products and our reactants, we see that it's exactly the same as for the uncatalyzed and the catalyzed case. So we see that enzymes do not actually affect the energy of the products, nor do they affect the energy of the reactants. And finally, the final important point to remember about enzymes is that enzymes are not actually used up. They are not actually consumed in any reaction. And if the enzyme is altered in some way, and usually they are, they are regenerated, the final enzyme is exactly the same as the initial enzyme that basically went into that reaction.