And these are our two substrates and they each have an exponent of one. So the order of this is one and the order of this is one. And so the total order of the reaction is two. So this is a typical bimolecular second order chemical reaction that takes place inside our body under enzyme catalyzed conditions. Now, according to this equation, we see that the enzyme catalyze reactions, when they take place inside our cells, the rate of the enzyme, the rate at which the enzyme actually catalyzes that reaction depends on three different things. Number one, it depends on the concentration of that substrate.