This reaction is catalyzed by at least two unrelated enzymes.

This reaction can be catalyzed by a variety of substances.

The reaction is catalyzed by a base and a divalent metal such as calcium.

In short, virtually all possible reactions will be catalyzed by something.

The reaction is catalyzed by a strong acid.

Those reactions are catalyzed by a group of enzymes called glycosyltransferases.

The reaction may also be catalyzed by a nanoparticle that consists of two metals.

The reaction is very slow, but is catalyzed by iron.

These reactions are often catalyzed by the addition of an acid or base.

These reactions are catalyzed by the presence of chloride ions.