Question

1. label the x - axis of this graph “progress of the reaction” and the y - axis “free energy.” label eₐ on this sketch, both with and without an enzyme. a. what effect does an enzyme have on eₐ?

Explanation:

Step1: Recall enzyme - function concept

Enzymes are biological catalysts.

Step2: Understand activation energy ($E_A$)

$E_A$ is the energy barrier for a reaction.

Step3: Analyze enzyme's effect on $E_A$

Enzymes lower the $E_A$.

Answer:

An enzyme lowers the activation energy ($E_A$) of a chemical reaction, making it easier for the reactants to reach the transition - state and proceed with the reaction.