Question

refer to the graph, which shows energy changes during a chemical reaction with and without an enzyme. which letter indicates the activation energy for a chemical reaction that has been catalyzed by an enzyme? (circle one) a or b identify the line (red or blue) that shows a reaction without an enzyme.

Explanation:

Enzymes lower the activation energy of a chemical reaction. The higher peak of the energy - change curve represents the activation energy for the reaction without an enzyme. In the given graph, the red line has a higher peak compared to the blue line, indicating a higher activation energy for the reaction without an enzyme.

Answer:

A. Red line