Question

During a biochemical reaction, an enzyme

• A. Becomes part of the product
• B. Remains unchanged
• C. Broken down into amino acids
• D. Reacts with fatty acids
• E. Becomes a polypeptide

Answer 1

The correct option is B Remains unchanged

Any chemical reaction includes the formation of transition state between reactant and product. The energy required for formation of the transition state is termed as activation energy. Enzymes enhance the rate of reaction by lowering down the activation energy of transition state but themselves remain unchanged. Thus, the correct answer is B.