Multiple choice

In an enzyme mixture, both substrates and inhibitors have been added. Both of them interact with the same binding site of enzyme What is true in this situation?

  1. Substrate will bind to the active site of the enzyme with no inhibition.

  2. Both substrate and the inhibitor will compete for binding to the catalytic site of the enzyme.

  3. Substrate can never bind itself to the enzyme.

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

As both the substrate and the inhibitor share the same binding site in the enzyme, they will compete with each other in binding. This will exert an competitive inhibition. If substarte concentration is increased to a greater level, then the inhibition will be released.

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