Question

Assertion: Enzymes have active sites that hold substrate molecule for a chemical reaction.

Reason: Drugs compete with natural substrate by attaching covalently to the active site of enzyme.

• A. Both assertion and reason are wrong statements
• B. Assertion is wrong statement reason is correct statement
• C. Assertion and reason both are correct statement, but reason does not explain assertion
• D. Assertion and reason both are correct, and reason explains the assertion
• E. Assertion is correct statement reason is wrong statement

Answer 1

The correct option is E Assertion is correct statement reason is wrong statement

Assertion

⮚ Enzymes do have active sites that hold substrate molecules for a certain chemical reaction in a living organism.

⮚ This active site of enzymes usually hold the substrate molecule at a suitable orientation so that the substrate can interact effectively.

⮚ Substrates bind to the active sites through the ionic bond, H-bonding, van der Waals interaction, or dipole-dipole interaction.

So, assertion is correct.

Hence, assertion is a correct statement, and the reason is a wrong statement.