Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Organic: Chemistry in Everyday Life

Question:

In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

Assertion : Non-competitive inhibitor inhibits the catalytic activity of enzyme by binding with its active site.

Reason : Non-competitive inhibitor changes the shape of the active site in such a way that substrate can't recognize it. .

Options:

Assertion and Reason both are correct but reason does not explain assertion.

 

Assertion and Reason both are correct and reason explains the assertion.

Assertion is correct statement but reason is wrong statement.

Assertion is wrong statement but the reason is correct statement.

Correct Answer:

Assertion is wrong statement but the reason is correct statement.

Explanation:

Assertion: Non-competitive inhibitors do not bind to the enzyme’s active site. These bind to a different site of enzyme which is called allosteric site.
So, assertion is wrong.
Reason: Non-competitive inhibitors change the shape of the active site of the enzyme in such a way that the substrate will not be able to recognize it.
So, reason is correct.