The AG of hydrolysis of a sugar phosphate (S-O-P) to the free sugar (S-OH) is -26.6 kJ/mol in a hypothetical cell in which the steady-state concentrations of sugar phosphate, free sugar, and inorganic phosphate are 1.0 mM, 0.20 mM, and 50.0 mM, respectively. S-O-P + H2O <====> S-OH + Pi (a) What is the AG°' for this reaction? (b) In the cell, S-O-P is formed by the transfer of a phosphate group from ATP. What would the AG be for the transfer of the g-phosphate from ATP to this sugar (S-OH)? [AG for ATP hydrolysis is -31 kJ/mol.]

Biochemistry
6th Edition
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Reginald H. Garrett, Charles M. Grisham
Chapter26: Synthesis And Degradation Of Nucleotides
Section: Chapter Questions
Problem 10P
icon
Related questions
Question
The AG of hydrolysis of a sugar phosphate (S-O-P) to the free sugar (S-OH) is -26.6
kJ/mol in a hypothetical cell in which the steady-state concentrations of sugar
phosphate, free sugar, and inorganic phosphate are 1.0 mM, 0.20 mM, and 50.0 mM,
respectively.
S-O-P + H2O <====> S-OH + Pi
(a) What is the AG°' for this reaction?
(b) In the cell, S-O-P is formed by the transfer of a phosphate group from ATP. What
would the AG be for the transfer of the g-phosphate from ATP to this sugar (S-OH)?
[AG for ATP hydrolysis is -31 kJ/mol.]
Transcribed Image Text:The AG of hydrolysis of a sugar phosphate (S-O-P) to the free sugar (S-OH) is -26.6 kJ/mol in a hypothetical cell in which the steady-state concentrations of sugar phosphate, free sugar, and inorganic phosphate are 1.0 mM, 0.20 mM, and 50.0 mM, respectively. S-O-P + H2O <====> S-OH + Pi (a) What is the AG°' for this reaction? (b) In the cell, S-O-P is formed by the transfer of a phosphate group from ATP. What would the AG be for the transfer of the g-phosphate from ATP to this sugar (S-OH)? [AG for ATP hydrolysis is -31 kJ/mol.]
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Biochemistry
Biochemistry
Biochemistry
ISBN:
9781305577206
Author:
Reginald H. Garrett, Charles M. Grisham
Publisher:
Cengage Learning
Human Physiology: From Cells to Systems (MindTap …
Human Physiology: From Cells to Systems (MindTap …
Biology
ISBN:
9781285866932
Author:
Lauralee Sherwood
Publisher:
Cengage Learning
Principles Of Pharmacology Med Assist
Principles Of Pharmacology Med Assist
Biology
ISBN:
9781337512442
Author:
RICE
Publisher:
Cengage
Basic Clinical Laboratory Techniques 6E
Basic Clinical Laboratory Techniques 6E
Biology
ISBN:
9781133893943
Author:
ESTRIDGE
Publisher:
Cengage
Principles Of Radiographic Imaging: An Art And A …
Principles Of Radiographic Imaging: An Art And A …
Health & Nutrition
ISBN:
9781337711067
Author:
Richard R. Carlton, Arlene M. Adler, Vesna Balac
Publisher:
Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:
9781305389892
Author:
Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:
Cengage Learning