Question

Assertion :All enzymes are proteins, but all proteins are not enzymes. Reason: Enzymes are biocatalysts and possess a stable configuration ration having active sites.

• A. If both (A) and (R) are true and (R) is the correct explanation of (A).
• B. If both (A) and (R) are true, but (R) is not the correct explanation of (A).
• C. If (A) is correct, but (R) is incorrect.
• D. If (A) and (R) are both incorrect.

Answer 1

The correct option is B If both (A) and (R) are true, but (R) is not the correct explanation of (A).

Enzymes are proteins made up of amino acids that helps in lowering the activation energy of the reaction. Only few proteins have the capability to bind the substrate with the help of their active sites in such a manner that allows the reaction to take place in an efficient manner. Hence, all enzymes are proteins but all proteins are not enzymes. Enzymes are known to speed up the rate of the reaction that occurs in the living cells and hence are known as biocatalysts. Hence, both assertion and reason are correct. However, from the reason, it cannot be justified that all enzymes are proteins but all proteins are not enzymes, hence it is not the correct explanation for the assertion