Calculate AG°' at 25 °C for the reaction:ATP + pyruvate = ADP + phosphoenolpyruvateCalculate Keq at 25 °C for the reaction:ATP + pyruvate = ADP + phosphoenolpyruvateWhat is the equilibrium ratio of pyruvate tophosphoenolpyruvate (PEP) if the ratio of ATP to ADP is 10?Calculate AG' for the isomerization of glucose 6-phosphateto glucose 1-phosphate at 25 °C.What is the equilibrium ratio of glucose 6-phosphate (G6P)to glucose 1-phosphate (G1P) at 25 °C?AGO! =Keq=[pyruvate][PEP]AGO!II[G6P][G1P]31.43 ×10-6Incorrect3 x1046 X10-2Incorrect0.85IncorrectkJ mol-¹kJ mol-¹ The table lists the standard free energies (AG°') of hydrolysis of some phosphorylated compounds.CompoundPhosphoenolpyruvate (PEP)1,3-Bisphosphoglycerate (1,3-BPG)Creatine phosphateATP (to ADP)Glucose 1-phosphatePyrophosphate (PP;)Glucose 6-phosphateGlycerol 3-phosphatekJ mol-¹-61.9-49.4-43.1-30.5-20.9-19.3-13.8-9.2kcal mol-1-14.8-11.8-10.3-7.3-5.0-4.6-3.3-2.2

The change in Gibbs free energy (ΔG) is the maximum amount of free energy available to do useful…

Answered: Calculate AG' at 25 °C for the…

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

Problem 1P

See similar textbooks

Similar questions

Consider the two half-reactions below and their standard reduction potentials. NAD+ + H+ + 2e → NADH Elo= -0.32 V a-Ketoglutarate + CO₂ + 2H+ + 2e → Isocitrate E' = -0.38 V (a) What is AE" for the spontaneous redox reaction that is, the reaction that actually occurs under standard biochemical conditions (pH 7)? (b) Which of the following statements are correct under standard biochemical conditions? i. The concentration of H+ is 1.0 M. ii. The reaction NAD+ + Isocitrate → NADH + H+ + a-Ketoglutarate + CO₂ is favor- able. iii. NAD+ accepts electrons from isocitrate. iv. The NAD → NADH reaction actually occurs in reverse. The a-ketoglutarate → isocitrate reaction occurs as written. (c) Calculate AG" for the reaction in (a). (pH 7, 25°C, pressure, 1 atm.) (d) Suppose that the actual conditions are T = 25°C, pH = 7, CO₂ = 1 atm, [a-Ketoglutarate] 10 mM, [NAD+] = 2.5 mM, and [NADH] = 0.5 mM. PAR = 2 mM, [Isocitrate] DE What is the value of AG under those conditions? (Hints: pH 7 is already…
Free energy changes under intracellular conditions differ markedly from those determined under standard conditions. AG" =-30.5 kJ/mol for ATP hydrolysis to ADP and P,. Calculate AG for ATP hydrolysis in a cell at 37 °C that contains [ATP] =3 mM, [ADP] =1mM, and [P] =1 mM.
As a result of an experiment following measurements were obtained from a cell: ATP concentration of 0.5 mM, ADP concentration of 0.1 mM, inorganic phosphate (Pi) concentration of 2 mM. Under these conditions calculate the actual free energy (AG) of the reaction of hydrolysis of ATP to ADP and Pi. (The standard energy (AG") of ATP = -31 kl/mol; RT = 2.58 kJ/mol) Select one: a. -28 kJ/mol b. -33 kJ/mol C. -42 kJ/mol d. -19 kJ/mol
Calculate the standard free energy change for the following reaction: 3-PG + ATP 1,3-BPG + ADP ---> Given the following standard free energies of hydrolysis: ATP = - 31 kJ/mol 1,3-BPG = - 49.6 kJ/mol 18.6 kJ/mol 80.6 kJ/mol -80.6 kJ/mol 18.6 kJ/mol
fructose-6-phosphate + ATP fructose-1,6- biphosphate + ADP AG° = 30.5 and 16.3 respectively Standard Free Energy change: -14.2 kj/mol ATP: 3mM, ADP: 0.4mM, fructose-1,6-biphosphate: 7mM %3D At what concentration of fructose-1,6-biphosphate would the reaction proceed backwards at 35°C?
Derive an Equation that explains the realtionship between kE and kN with respect to the equilibrium constants provided in the reaction scheme provided below. Assume that the enzyme must bind with A before it binds with B. The two reactions are related by the following reaction scheme:provided below.
A) Calculate the Gibbs free energy change for the following reaction: Fructose diphosphate If the reaction is performed at 27°C and AH is 1,246 calories and AS is 4 calories/K. Is this a spontaneous or non-spontaneous reaction. Why? Is the reaction endergonic or exergonic? DHAP+ Glyceraldehyde phosphate
For an enzyme catalyzed reaction of the form: S + E → P + E, the rate of product formation, [P], is given by: d[P]/dt = k2[E}total [S] /(Km + [S]) = For the enzymatically catalyzed hydrolysis of ATP at 25 °C and pH 7.0, the Michaelis Menten constant, Km was found to be equal to 16.8 μmol L 1 and the value of k2[E]total was found to be 0.220 μmol L-¹s¹. Find the initial rate at an initial ATP concentration of 30.0 μmol L-1
Acetyl CoA + 2H* + 2e = pyruvate + COASH E = -0.48 V Ubiquinone + 2H* + 2e = Ubiquinol E" = +0.04 V Consider the redox rxn wherein a pair of e passes from pyruvate to ubiquinone. Calculate the change in standard Gibbs free energy (kJ/mol). Report answer to two decimal places.
Explain the difference between ΔG°’ and ΔG and calculate the free energy (delta G) of hydrolysis of ATP in a rat liver cell in which the ATP, ADP, and Pi concentrations are 3.4, 1.3, and 4.8 mM.
The degradation of glycogen is catalyzed by the enzyme phosphorylase and has AGO" equal to +3.1 kJ · mol1. The equation for this reaction is shown below. glycogen (n residues) + P;→ glycogen (n-1 residues) + G1P What is the ratio of [P;]/[G1P] under standard conditions? Use 2 significant figures. [P;] : [G1P] = i :1 What is the value of AG under cellular conditions when the [P;/[G1P] ratio is 50/1? Use 2 significant figures. AG = i kJ. mol-1
Complete the balanced equation for the overall reaction by selecting an answer choice in the brackets. Sucrose + [2 Pi, 4Pi]+[4 ADP, 2 ADP, 4 ATP, 2ATP]+[2 NAD+, 4 NAD+, 6 NAD+]+[H2O, 5 H2O, 3 H2O] --> [2 cirate, 2 oxaloacetate, 2 pyruvate, 2 acetyl-coA]+[4 ADP, 2 ADP, 4 ATP, 2ATP] + [2 NAD+, 4 NAD+, 6 NAD+] + [2H+, 8H+, 6 H+, 4 H+, 10 H+] Does the commercial process require aerated culture medium—that is, is this a fermentation or an aerobic process? A. a fermentation process, because A. niger cells must use O2O2 to continuously regenerate NAD+ B. an aerobic process, because A. niger cells must use O2O2 to continuously regenerate NAD+ C. a fermentation process, because A. niger cells cannot use O2O2 to continuously regenerate NAD+ D. an aerobic process, because A. niger cells cannot use O2O2 to continuously regenerate NAD+

SEE MORE QUESTIONS

Recommended textbooks for you

Biochemistry

ISBN:

9781319114671

Author:

Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:

W. H. Freeman

Lehninger Principles of Biochemistry

Biochemistry

ISBN:

9781464126116

Author:

David L. Nelson, Michael M. Cox

Publisher:

W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…

Biochemistry

ISBN:

9781118918401

Author:

Donald Voet, Judith G. Voet, Charlotte W. Pratt

Publisher:

WILEY

Biochemistry

ISBN:

9781319114671

Author:

Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:

W. H. Freeman

Lehninger Principles of Biochemistry

Biochemistry

ISBN:

9781464126116

Author:

David L. Nelson, Michael M. Cox

Publisher:

W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…

Biochemistry

ISBN:

9781118918401

Author:

Donald Voet, Judith G. Voet, Charlotte W. Pratt

Publisher:

WILEY

Biochemistry

ISBN:

9781305961135

Author:

Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Publisher:

Cengage Learning

Biochemistry

ISBN:

9781305577206

Author:

Reginald H. Garrett, Charles M. Grisham

Publisher:

Cengage Learning

Fundamentals of General, Organic, and Biological …

Biochemistry

ISBN:

9780134015187

Author:

John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson

Publisher:

PEARSON

SEE MORE TEXTBOOKS