ATP can be hydrolyzed into ADP + inorganic phosphate (P.) with a AG of -30500 J/mol. If, galactose-1-phosphate canbe hydrolyzed into galactose + P, with a AG of -15.3 kJ/mol what is the Gibbs free energy change for the reaction ofgalactose + ATP = galactose-1-phospate + ADP?O a. -45.8 kJ/molO b. 15.2 kJ/molOc. -30484.7 J/molO d. -15.2 kJ/molOe. -1520 J/mol

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Answered: ATP can be hydrolyzed into ADP +…

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

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Intramitochondrial ATP concentrations are about 5 mM, and phosphate concentration is about 10 mM. Consider that ADP is five times more abundant than AMP. a. Calculate the molar concentrations of ADP and AMP at an energy charge of 0.85. b. Calculate ∆G' for ATP hydrolysis under these conditions (∆G0' for ATP hydrolysis is -32.2 kJ/mol) The energy charge is defined as ( [ATP] + 1/2 [ADP] ) / ( [ATP] + [ADP] + [AMP] )
Please provide an explanation for how to work through this practice problem: Using table 12.1, calculate the free energy change for the synthesis of ATP from cAMP and inorganic phosphate. (Note: cAMP is hydolyzed to AMP, and the free engery of hydrolysis for ATP and ADP is approximately equal.) Table 12.1: (Compound: Change in Free Energy in kJ/mol) cAMP: -50.4 Creatine phosphate: -43.3 ATP: -30.5 Glucose 6-phosphate: -13.9 AMP: -9.2
Could you explain step by step how to solve this? I'm not sure how to get all the numbers that are shown in the solved answer.
The Keq (25C) of the reaction below is 635.67. Fructose 1,6-biphosphate <-->fructose -6-phosphate + Pi. a) What is the standard Gibbs free energy change for this reaction? b) if the concentrationof fructose 1,6 biphosphate is adjusted to 0.85 M and that of fructose 6 phosphate and phosphate adjusted to 0.055 M, what is the actual free energy change
24. Hexokinase catalyzes the phosphorylation of glucose from ATP, yielding glucose-6-P and ADP. The standard-state free energy change for hydrolysis of glucose-6-P is -13.9 kJ/mol. Calculate the standard-state free energy change and equilibrium constant for the hexokinase reaction. AG" for ATP hydrolysis -31.5 kJ/mol
3. 1,3-bisphosphglycerate has a high energy bond that can be used to phosphorylate ADP to make ATP according to the equation below. The free energy of hydrolysis of 1,3- bisphophoglycerate and ATP under standard conditions are -49.4 kJ/mol and -30.5 kJ/mol, respectively. If the [ATP] to [ADP] is about 4 in the cell, how much 1,3-bisphophoglycerate is needed relative to 3-phosphoglycerate to keep this formation of ATP spontaneous? -203PO. H- -OH -OPO3-² + ADP H- -OH -OPO3-² + ATP
The enzyme, fumarate, has the following kinetic constants: k 1 k 2 k -1 where k 1 = 10 9 M -1 s -1 k -1 =4.4 x 10 4 s -1 k 2 = 10 3 s -1 a. What is the value of the Michaelis constant for this enzyme? b. At an enzyme concentration of 10 -6 M, what will be the initial rate of product"
The standard Gibbs (free) energy of reaction (A,Gº') of the following reaction is equal to zero (at 25 °C and pH 7) pyruvate + aspartate Pyruvate, aspartate and L-alanine are mixed each at a concentration of 1 mM, without oxaloacetate. Calculate the molar concentrations of each compound when the reaction reaches equilibrium. oxaloacétate + L-alanine
Given the tri-acylglyceride (TAG) below as source of energy when administered from an organism's diet, H,C-O HC-0 H,C-o [A] Show the calculated maximum amount of ATP that could be generated by the full oxidation of the compound. Illustrate where the ATPS are derived from (show the reactions and enzymes involved). You can use general structure of the FFA in the reactions involved in the process. (B) Discuss the fate of the glycerol. (C] One of the FFAS derived from the TAG has the same carbon number as glucose. Compare the maximum yield of ATP derivable from this FFA as compared to the ATP yield from glucose.
The glucose oxidase used in this experiment has a concentration of 27 U/mg. Calculate the mass (in g) of solid glucose oxidase required to react with all the glucose in 4.00 µL of10.0- mM glucose sample assuming the reaction proceeds for 30 minutes.
Proline racemase catalyzes the conversion between L-proline and D-proline. The Km and kcat for this reaction are 0.15 M and 550/sec respectively. If the enzyme concentration is 1.45 X 10-5 mmole/ml what is the Vmax of this reaction?
Calculate the standard free energy for creatine-phosphate hydrolysis in a cell where [creatine-P]=3 mM, [creatine]=2 mM, and [Pi]= 12.1 mM. Is the reaction exergonic or endogonic?

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