M Prep | MCAT 2015 Question of the Day - Prep, Practice Questions, and More!

Q:

The steps of the net enzymatic reaction Substrate (S) ↔ Product (P) can be written as follows, where E represents the enzyme:

E + S ↔ ES ↔ EP ↔ E + P

In most enzymatic reactions, the rate-limiting step is the binding of the substrate to the enzyme. This suggests the rate law of the overall reaction S ↔ P can be written as:

A

rate = k[E][S]

B

rate = k[ES]

C

rate = k[E][P]

D

The answer cannot be determined from the given information.