So we can easily change the conditions in the environment and that will essentially cause the dissociation of that inhibitor from that particular enzyme. So the defining property of reversible inhibition is the ease with which the inhibitors can actually dissociate and break away from the enzyme under certain condition. And this is in contrast to Irreversible inhibitors that basically bind onto the enzyme. And once bound, they will not dissociate very easily. Now, we can subdivide subcategorize reversible inhibition into three different types, and actually there are four, but in this lecture we're going to focus on three. So we have competitive inhibition, we have uncompetitive inhibition, and we have non competitive inhibition.