Question

Enzymes increase the rate of biochemical reaction through

• A. Changing equilibrium
• B. Lowering activation energy
• C. Forming reactant-product complex
• D. Forming enzyme-product complex.

Answer 1

The correct option is B Lowering activation energy

Enzymes are biological catalysts. A catalyst is a chemical that increases the rate of a chemical reaction without itself being changed by the reaction. Without a catalyst, the amount of energy required for the reaction is large. Enzymes and catalysts both affect the rate of a reaction. The lower the activation energy for a reaction, the faster the rate of chemical reaction. Thus enzymes speed up reactions by lowering activation energy.

So, the correct answer is option B.