AP BIOLOGY

BIOCHEMISTRY

ENZYMES AND METABOLISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following statements is (are) true about enzyme-catalyzed reactions?
A
The reaction is faster than the same reaction in the absence of the enzyme.
B
The free energy change of the reaction is opposite from the reaction in the absence of the enzyme.
C
The reaction always goes in the direction toward chemical equilibrium
D
Enzyme-catalyzed are always exergonic/catabolic
Explanation: 

Detailed explanation-1: -Answer and Explanation: The correct option is c. The rate of the reaction is greater than when the same reaction occurs in the absence of an enzyme.

Detailed explanation-2: -Which of the following statements is true about enzyme-catalyzed reactions? The reaction is faster than the same reaction in the absence of the enzyme.

Detailed explanation-3: -This statement about enzymes is true: Enzymes accelerate reactions by lowering the activation energy. Enzymes are proteins whose three-dimensional form is key to their function. Enzymes do not alter the overall change in free energy for a reaction.

Detailed explanation-4: -An enzyme provides an alternate pathway having lower activation energy. The statement (C) is false with respect to an enzyme’s ability to catalyses a reaction.

There is 1 question to complete.