So carbonic anhydrase has this turnover number. It is able to actually use a single active site, a single enzyme, a single carbonic. And hydrate can transform this many substrate molecules, CO2 molecules, into the product bicarbonate every single second. And this makes sense because our tissues and cells produce a very, very large number of CO2 molecules. And so to effectively get rid of all those CO2 molecules, our body has to have a very effective and a very efficient enzyme. Now, to compare carbonic and hydrates to another enzyme, let's, for example, talk about DNA polymerase one.