The Specific Site on the Enzyme Where ____ Binds and Catalysis

Question

The specific site on the enzyme where ____ binds and catalysis occurs is called the ____ site.
A) coenzyme; substrate
B) substrate; active
C) coenzyme; regulatory
D) regulatory; active
E) none of the above

Accepted Answer

The active site is the specific site on an enzyme where substrate binds and catalysis occurs. Coenzymes may also bind to the enzyme, but they do not participate in the actual catalysis and typically bind to a distinct site called the coenzyme site. Regulatory sites are separate from the active site and bind molecules that can modulate enzyme activity, but they are not directly involved in catalysis.