Which of the Following Statements About Enzyme-Catalyzed Reactions Is True

Multiple Choice

Which of the following statements about enzyme-catalyzed reactions is true?

A) The free-energy change of the reaction is greater than when the same reaction occurs in the absence of an enzyme.
B) The rate of the reaction is greater than when the same reaction occurs in the absence of an enzyme.
C) The activation energy required for the reaction to proceed is greater than when the same reaction occurs in the absence of an enzyme.
D) Energy from ATP is required to activate the enzyme before it can catalyze the reaction.