Question

Competitive inhibitors have the ability to bind with:

• A. Non-competitive inhibitor
• B. Active site of enzyme
• C. Enzyme cofactor
• D. Product of reaction

Hint:

Competitive inhibitor = "Substrate mimic" → always competes for enzyme active site.

Answer 1

The Correct Option is B

Step 1: Concept of competitive inhibition.
Competitive inhibitors resemble the substrate structurally and compete for the same binding site on the enzyme.

Step 2: Binding mechanism.
They bind specifically to the active site of the enzyme, preventing substrate binding.

Step 3: Effect on reaction.
This inhibition can be overcome by increasing substrate concentration.

Step 4: Final conclusion.
Thus, competitive inhibitors bind to the active site of the enzyme.
Final Answer: \[ \boxed{\text{Active site of enzyme}} \]