Question

Which one describes the given graph correctly?

• A. Exothermic reaction with energy A in the absence of enzyme and B in the presence of enzyme
• B. Endothermic reaction with energy A in the presence of enzyme and B in the absence of enzyme
• C. Exothermic reaction with energy A in the presence of enzyme and B in the absence of enzyme
• D. Endothermic reaction with energy A in the absence of enzyme and B in the presence of enzyme

Answer 1

Answer: (C)

Exothermic reaction with energy A in the presence of enzyme and B in the absence of enzyme

In the above given graph the activation energy for the reaction to proceed is low in presence of an enzyme and high in absence of an enzyme.

Enzymes are proteins which accelerate the rate of the reaction. The substrate require a minimum amount of energy before they can get converted into products.This energy is called the activation energy. The enzymes lower the activation energy required for the reaction to proceed finally resulting in products.

So, the correct answer is option C.