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Which of the following is the best explanation for this observation? When 10,000 molecules of ATP are hydrolyzed to ADP and Pi in a test tube, about twice as much heat is liberated as when a cell hydrolyzes the same amount of ATP.

Which of the following is the best explanation for this observation? When 10,000 molecules of ATP are hydrolyzed to ADP and Pi in a test tube, about twice as much heat is liberated as when a cell hydrolyzes the same amount of ATP.

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A. Cells are open systems, but a test tube is a closed system.
B. Cells are less efficient at heat production than nonliving systems.
C. The hydrolysis of ATP in a cell produces different chemical products than does the reaction in a test tube.
D. The reaction in cells Must be catalyzed by enzymes, but the reaction in a test tube does not need enzymes.
E. Cells convert some of the energy of ATP hydrolysis into other forms of energy besides heat.

This question is part of Cellular Energetics Practice Quiz
Asked by Brownie, Last updated: Jan 24, 2020

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2 Answers

M. Krasinski

M. Krasinski, Content Writer, Columbus

Answered Jul 20, 2018

The answer to this is letter E. Cells convert some of the energy of ATP hydrolysis into other forms of ...Read More
 

John Smith

John Smith

Answered Dec 15, 2016

Cells convert some of the energy of ATP hydrolysis into other forms of energy besides heat.
 

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