ATP releases energy.

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
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3. ATP can be hydrolyzed to release energy in the following reaction:
ATP + H,0 5 ADP + PO,3- + H*
You may have heard or read that breaking the high energy O-P bond in ATP releases energy.
a. Why is this statement false?
Transcribed Image Text:3. ATP can be hydrolyzed to release energy in the following reaction: ATP + H,0 5 ADP + PO,3- + H* You may have heard or read that breaking the high energy O-P bond in ATP releases energy. a. Why is this statement false?
b. It is true that the reaction releases energy (is exothermic). Why is the process exothermic?
Make sure you consider all the bonds breaking and forming.
c. The P-O bond that breaks in ATP is considered a high energy bond. What does that mean
in terms of the relative potential energy of the P-O bond in ATP that breaks and the P-O
bond in the "free" phosphate?
Transcribed Image Text:b. It is true that the reaction releases energy (is exothermic). Why is the process exothermic? Make sure you consider all the bonds breaking and forming. c. The P-O bond that breaks in ATP is considered a high energy bond. What does that mean in terms of the relative potential energy of the P-O bond in ATP that breaks and the P-O bond in the "free" phosphate?
Expert Solution
Step 1

ATP hydrolysis : 

It is a catabolic reaction in which chemical energy that is stored in the P-O or high energy phosphoanhydride bond in adenosine triphosphate(ATP) is released by breaking these bond in the process to form mechanical energy in muscles.

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