And what it also does is it decreases the likelihood that other reactions take place and that decreases the likelihood that unwanted products are actually formed. So active sites typically create non polar microenvironments in which bonds can be formed and broken very easily. And unless water actually participates as a reactant in that biological reaction, it is usually excluded from that microenvironment from that active side. And this also helps prevent unwanted reactions. Now, property number four of active sites active sites actually only make up a very small portion, a very small component of that overall enzyme. So even though the enzyme is usually relatively large.