ATP hydrolysis in a test tube releases only about half as much energy as ATP hydrolysis in the cell.Which of the following statements is the best explanation for this observation?
A)Cells maintain higher internal pressure,which speeds up the reaction rate.
B)Reactant and product concentrations in the cell are different from the standard conditions used in a test tube.
C)ATP hydrolysis in a cell produces different products than ATP hydrolysis in a test tube.
D)ATP hydrolysis in cells is catalyzed by enzymes,which releases more energy than the uncatalyzed reaction in a test tube.

Question

Quizplus · Accepted Answer

The difference in energy release is primarily due to the reactant and product concentrations in the cell differing from those under standard conditions in a test tube, affecting the overall free energy change of the reaction.

ATP Hydrolysis in a Test Tube Releases Only About Half