Question

Which of the following describes the given graph correctly?

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

Answer 1

The correct option is C Exothermic reaction with energy A in presence of enzyme and B in absence of enzyme

A' represents the activation energy in the presence of enzyme while 'B' in the absence of enzyme i.e., enzyme lowers down the activation energy.
Potential energy of substrate is more than the product. So it is an exothermic reaction. '