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To be metabolized, glucose must be converted to glucose 6-phosphate. However, the phosphorylation of glucose to form glucose 6-phosphate is endergonic with a positive AG. How do cells circumvent this problem? The reaction is catalyzed by an enzyme, which allows the reaction to proceed by lowering its activation energy. An enzyme raises the activation energy barrier to favor glucose 6-phosphate formation. The reaction is catalyzed by an enzyme, which allows the reaction to proceed by changing its AG. An enzyme changes the equilibrium constant for the reaction to favor glucose 6-phosphate formation. The reaction is coupled to the hydrolysis of ATP, making the entire process exergonic.

To be metabolized, glucose must be converted to glucose 6-phosphate. However, the phosphorylation of glucose to form glucose 6-phosphate is endergonic with a positive AG. How do cells circumvent this problem? The reaction is catalyzed by an enzyme, which allows the reaction to proceed by lowering its activation energy. An enzyme raises the activation energy barrier to favor glucose 6-phosphate formation. The reaction is catalyzed by an enzyme, which allows the reaction to proceed by changing its AG. An enzyme changes the equilibrium constant for the reaction to favor glucose 6-phosphate formation. The reaction is coupled to the hydrolysis of ATP, making the entire process exergonic.

Biochemistry
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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To be metabolized, glucose must be converted to glucose 6-phosphate. However, the phosphorylation of glucose to form glucose 6-phosphate is endergonic with a positive ΔG. How do cells circumvent this problem? - The reaction is catalyzed by an enzyme, which allows the reaction to proceed by lowering its activation energy. - An enzyme raises the activation energy barrier to favor glucose 6-phosphate formation. - The reaction is catalyzed by an enzyme, which allows the reaction to proceed by changing its ΔG. - An enzyme changes the equilibrium constant for the reaction to favor glucose 6-phosphate formation. - The reaction is coupled to the hydrolysis of ATP, making the entire process exergonic.
Transcribed Image Text:To be metabolized, glucose must be converted to glucose 6-phosphate. However, the phosphorylation of glucose to form glucose 6-phosphate is endergonic with a positive ΔG. How do cells circumvent this problem? - The reaction is catalyzed by an enzyme, which allows the reaction to proceed by lowering its activation energy. - An enzyme raises the activation energy barrier to favor glucose 6-phosphate formation. - The reaction is catalyzed by an enzyme, which allows the reaction to proceed by changing its ΔG. - An enzyme changes the equilibrium constant for the reaction to favor glucose 6-phosphate formation. - The reaction is coupled to the hydrolysis of ATP, making the entire process exergonic.
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