Assertion- Most of the enzyme are proteins, which catalyse biochemical reactions.
Reason- The enzyme itself is unchanged in the reaction, its presence allows the reaction to takes place.

Options

A. Both assertion and reason are true and the reason is the correct explanation of assertion
B. Both assertion and reason are true, but reason is not the correct explanation of assertion.
C. assertion is true, but reason is false
D. assertion is false, but reason is true

Answer

B

Explanation

Enzymes are either proteins or RNA (e.g. sribosome) that catalyses a specific chemical reactionn. It does not affect the equilibrium of the catalysed reaction. It just enchances the rate of a reaction by providing a reaction path with a lower activation energy. enzyme itself remains unchanged after reaction.