Answer:
D. Reaction B
Explanation:
An enzyme is known to decrease the activation energy that is needed for the reaction to occur. Thus, reaction B indicates a reaction catalysed by an enzyme.
D appears to take in much energy and seems to be catalysed by an enzyme but due to the fact that it looks slow when contrasted to reaction A and B, we can gladly affirm that option D. (REACTION B) is the ANSWER.
The energy shown in the graph speaks of the activation energy that is needed to start up any chemical reaction. Thus, the more energy is absorbed, the more activation energy is indicated which in turns decreases the likelihood for a chemical reaction to be catalyzed by an enzyme. Therefore, the reaction that have the least peak uses less energy to promote the chemical reaction and ìs indicative of an enzyme catalysed reaction.