A Biologist Working in a Lab Adds a Compound to a Solution

Multiple Choice

A biologist working in a lab adds a compound to a solution that contains an enzyme and substrate. This particular compound binds reversibly to the enzyme at the active site. Once the compound is bound to the enzyme, the catalysis of substrate to product stops. Which of the following is TRUE of the compound?

A) The compound is an allosteric activator.
B) The compound is an allosteric inhibitor.
C) The compound competes with the substrate for the active site of the enzyme.
D) The compound is a catalyst for the reaction.
E) The effect of the compound can be overcome by adding more substrate.