ATP Hydrolysis in a Test Tube Releases Only About Half

question 6

Multiple Choice

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.

---

Definitions:

Following Reaction

A phrase typically used to introduce the sequence or outcome of a chemical process or reaction of interest.

Major Organic Product

The primary organic compound formed in the highest amount from an organic reaction, often the target of synthesis.

Following Reaction

A step in a series of chemical reactions that happens after a specified initial reaction or set of conditions.

Clarifying Additive

A substance added to liquids to remove or to reduce the appearance of cloudiness or turbidity.