The following questions are based on the reaction A + B → C + D shown in Figure 8.2.

-Which best describes the reaction?
A)The amount of free energy initially present in the reactants is indicated by "a."
B)The amount of free energy present in the products is indicated by "e."
C)The amount of free energy released as a result of the noncatalyzed reaction is indicated by "c."
D)The amount of free energy released as a result of the catalyzed reaction is indicated by "d."
E)The difference between "b" and "c" is the activation energy added by the presence of the enzyme.

Question

The following questions are based on the reaction A + B → C + D shown in Figure 8.2.

-Which best describes the reaction?
A)The amount of free energy initially present in the reactants is indicated by "a." 
B)The amount of free energy present in the products is indicated by "e." 
C)The amount of free energy released as a result of the noncatalyzed reaction is indicated by "c." 
D)The amount of free energy released as a result of the catalyzed reaction is indicated by "d." 
E)The difference between "b" and "c" is the activation energy added by the presence of the enzyme.

Quizplus · Accepted Answer

The amount of free energy released as a result of the catalyzed reaction is indicated by "d." This is because the presence of a catalyst (represented by the peak labeled "d") lowers the activation energy required for the reaction to occur, resulting in a release of free energy.

Note: choices A, B, and C are incorrect as they do not accurately describe the information shown in the figure. Choice E is partially correct, but does not fully explain the meaning of the different peaks in the graph.

The Following Questions Are Based on the Reaction a