Homework Answers
The concept used to solve this problem is based on the standard Gibb's free energy change of a chemical reaction and how it determines the direction of a reaction. The standard Gibbs’s free energy change is the change in free energy associated with the formation of products from 1 mole of reactants at standard conditions.
The standard Gibb's free energy change 
is able to determine the spontaneity and direction of a reaction.For a reaction to be spontaneous in the forward direction,
should be negative. If a reaction has positive 
it means that the reaction is spontaneous in the reverse direction.
Part a
The reaction for hydrolysis of fructose-6-phosphate is as follow.
The standard free energy change for ATP hydrolysis is as follow.
Here ADP is adenosine diphosphate and Pi is inorganic phosphate.
For the following reaction-
The standard free energy change can be calculated as-
Part b
The reaction for hydrolysis of 1,3- bisphosphoglycerate is as follow.
The standard free energy change for ATP hydrolysis is as follow.
For the following reaction-
The standard free energy change can be calculated as follow.
Part c
The reaction for hydrolysis of phosphoenolpyruvate is as follow.
The standard free energy change for ATP hydrolysis is as follow.
For the following reaction-
The standard free energy change can be calculated as-
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Determine the direction the following reactions will progress. Assume that the reactants and products are present...
stion 8 of 25 > The table lists the standard free energies of hydrolysis (AGⓇ) of...
stion 8 of 25 > The table lists the standard free energies of hydrolysis (AGⓇ) of some phosphorylated compounds. Compound kJ mol kcal mol-1 Phosphoenolpyruvate (PEP) -61.9 --14.8 1,3-Bisphosphoglycerate (1,3-BPG) -49.4 - 11.8 Creatine phosphate -43.1 ATP (to ADP) -30.5 -7.3 Glucose 1-phosphate -20.9 -5.0 Pyrophosphate (PP) Glucose 6-phosphate Glycerol 3-phosphate -9.2 -2.2 10.3 -4.6 -13.8 3.3 What is the direction of each of the following reactions when the reactants are initially present in equimolar amounts? The reaction ATP+H,O -...
Shown is acetyl phosphate. Say a new enzyme uses acetyl phosphate to phosphorylate ADP to make ATP (acetyl phosphate + ADP —> acetate + ATP). What is the standard free energy change of this reacti...
Shown is acetyl phosphate. Say a new enzyme uses acetyl
phosphate to phosphorylate ADP to make ATP (acetyl phosphate + ADP
—> acetate + ATP). What is the standard free energy change of
this reaction?
CH3 Table 13-2 Standard Free Energies of Phosphate Hydrolysis of Some Compounds of Biological Interest AGo (kJ mol 1) 61.9 -49.4 45.6 43.1 -43.1 30.5 -20.9 19.2 13.8 13.8 -9.2 Compound Phosphoenolpyruvate 1,3-Bisphosphoglycerate ATP AMP + PP,) Acetyl phosphate Phosphocreatine ATP ㈠ ADP + Pi)...
4. Consider the following reaction: ATP + pyruvate phosphoenolpyruvate + ADP Given: Standard free energy of...
4. Consider the following reaction: ATP + pyruvate phosphoenolpyruvate + ADP Given: Standard free energy of hydrolysis for ATP to ADP is -30.5 kJ/mol Standard free energy of hydrolysis for phosphenolpyruvate to pyruvate is -61.9 kJ/mol Calculate AGⓇ and Key for this reaction.
Part A For the following gluconeogenesis reactions, select all of the coupled reactions. NOTE: Pi stands...
Part A For the following gluconeogenesis reactions, select all of the coupled reactions. NOTE: Pi stands for phosphate. o phosphoenolpyruvate + H20 = 2-phosphoglycerate 0 3-phosphoglycerate + ATP = 1,3-bisphosphoglycerate + ADP o pyruvate + HCO3 + ATP = oxaloacetate + ADP + Pi o fructose-6-phosphate = glucose-6-phosphate
please calculate and show work 10. Metabolism. Which of the following reactions is favorable under standard-state...
please calculate and show work
10. Metabolism. Which of the following reactions is favorable under standard-state conditions (1 M reactants and products; pH = 7)? Calculate the value of AGⓇ for each phosphate transfer reaction. A) ATP + pyruvate ---> phosphoenolpyruvate + ADP B) 3-phosphoglycerate + ATP ---> 1,3-bisphosphoglycerate + ADP C) 1,3-bisphosphoglycerate + creatine ---> creatine phosphate + 3-phosphoglycerate D) glucose 6-phosphate --> glucose 1-phosphate not favorable noer standard
1. 2. 3. 4. Select all that apply. Identify the reaction(s) of glycolysis inhibited by ATP □ glyceraldehyde-3-phosphate → 1,3-bisphosphoglycerate phosphoenolpyruvate +pyruvate 3-phosphoglycerate...
1.
2.
3.
4.
Select all that apply. Identify the reaction(s) of glycolysis inhibited by ATP □ glyceraldehyde-3-phosphate → 1,3-bisphosphoglycerate phosphoenolpyruvate +pyruvate 3-phosphoglycerate ~2-phosphoglycerate 1) fructose-6-phosphate→ fructose-1,6-bisphosphate . glucose glucose-6-phosphate Select all that apply. Alcohol fermentation: consumes ATP as it produces ethanol. O produces carbon dioxide begins as pyruvate is decarboxylated to acetaldehyde in a reaction catalyzed by alcohol dehydrogenase m regenerates NAD requires the enzyme alcohol dehydrogenase, In the figure below, what is the reaction occurring at the location...
3. From data in the table below calculate the AG for each of the following reactions....
3. From data in the table below calculate the AG for each of the following reactions. Show all your work and calculations. (4 points) Phosphoenolpyruvate ADP Pyruvate ATP A) ATP3-Phosphoglycerate ADP 1,3-Biphosphoglycerate B) Standard Free Energies of Hydrolysis of Some Phosphorylated Compounds and Acetyl-CoA (a Thioester) AG (keal/mol) Phosphoenolpyruvate 13-Bisphosphoglycerate (3-phosphoglycerate+ P Phosphocreatine ADP (AMP+ P) ATP (ADP+P ATP (AMP+PP) -14.8 -11.8 -10.3 -7.8 -7.3 -10.9 AMP ( adenosine + P) PP,(2P Glucose 3-phosphate -3.4 -4.0 -6.0 Fructose 6-phosphate Glucose...
Tautomerization of enolpyruvate to pyruvate occurs in step 10 of glycolysis. If DG°’ = -46 kJ/mol,...
Tautomerization of enolpyruvate to pyruvate occurs in step 10 of glycolysis. If DG°’ = -46 kJ/mol, what is the ratio of pyruvate to enolpyruvate at equilibrium? Steady-State Concentrations of Glycolytic Metabolites in Erythrocytes Metabolite mM Glucose 5.0 Glucose-6-phosphate 0.083 Fructose-6-phosphate 0.014 Fructose-1,6-bisphosphate 0.031 Dihydroxyacetone phosphate 0.14 Glyceraldehyde-3-phosphate 0.019 1,3-Bisphosphoglycerate 0.001 3-Phosphoglycerate 0.12 2-Phosphoglycerate 0.030 Phosphoenolpyruvate 0.023 Pyruvate 0.051 Lactate 2.9 ATP 1.85 ADP 0.14 Pi 1.0
Considering the energy changes associated with the individual reactions below, which reaction can be coupled with...
Considering the energy changes associated with the individual reactions below, which reaction can be coupled with the hydrolysis of ATP to generate a coupled reaction that is energetically favorable? Energy. change -7.3 kcal/mol ATP + H20 → ADP + HPO42- succinyl CoA + H20 → succinate + HSCOA + -9.4 HPO42- fructose 1,6-bisphosphate + H20 → fructose 6- kcal/mol -3.9 kcal/mol phosphate + HPO42- 1,3-bisphosphoglycerate + H2O → 3- phosphoglycerate + HPO42- -11.8 kcal/mol A) Succinate + HSCOA + HPO42-→...
please help! thanks TABLE 12-4 Standard Free Energy Change for Phosphate Hydrolysis Compound AGⓇ' (kJ. mol-')...
please help! thanks
TABLE 12-4 Standard Free Energy Change for Phosphate Hydrolysis Compound AGⓇ' (kJ. mol-') Phosphoenolpyruvate -61.9 1,3-Bisphosphoglycerate -49.4 ATP → AMP + PP, -45.6 Phosphocreatine -43.1 ATP ADP + P -30.5 Glucose-1-phosphate -20.9 PP, 2P, -19.2 Glucose-6-phosphate -13.8 Glycerol-3-phosphate -9.2 thioester bond AGⓇ' = -31.5 kJ•mol-1 H20 O CH3 -C-s-CoA I CH3 -C-0- + COA-SH Acetyl-CoA The formation of acetyl CoA from acetate is an ATP driven reaction: Acetate + ATP + COA <--> acetyl COA + AMP...
stion 8 of 25 > The table lists the standard free energies of hydrolysis (AGⓇ) of some phosphorylated compounds. Compound kJ mol kcal mol-1 Phosphoenolpyruvate (PEP) -61.9 --14.8 1,3-Bisphosphoglycerate (1,3-BPG) -49.4 - 11.8 Creatine phosphate -43.1 ATP (to ADP) -30.5 -7.3 Glucose 1-phosphate -20.9 -5.0 Pyrophosphate (PP) Glucose 6-phosphate Glycerol 3-phosphate -9.2 -2.2 10.3 -4.6 -13.8 3.3 What is the direction of each of the following reactions when the reactants are initially present in equimolar amounts? The reaction ATP+H,O -...
Shown is acetyl phosphate. Say a new enzyme uses acetyl
phosphate to phosphorylate ADP to make ATP (acetyl phosphate + ADP
—> acetate + ATP). What is the standard free energy change of
this reaction?
CH3 Table 13-2 Standard Free Energies of Phosphate Hydrolysis of Some Compounds of Biological Interest AGo (kJ mol 1) 61.9 -49.4 45.6 43.1 -43.1 30.5 -20.9 19.2 13.8 13.8 -9.2 Compound Phosphoenolpyruvate 1,3-Bisphosphoglycerate ATP AMP + PP,) Acetyl phosphate Phosphocreatine ATP ㈠ ADP + Pi)...
4. Consider the following reaction: ATP + pyruvate phosphoenolpyruvate + ADP Given: Standard free energy of hydrolysis for ATP to ADP is -30.5 kJ/mol Standard free energy of hydrolysis for phosphenolpyruvate to pyruvate is -61.9 kJ/mol Calculate AGⓇ and Key for this reaction.
Part A For the following gluconeogenesis reactions, select all of the coupled reactions. NOTE: Pi stands for phosphate. o phosphoenolpyruvate + H20 = 2-phosphoglycerate 0 3-phosphoglycerate + ATP = 1,3-bisphosphoglycerate + ADP o pyruvate + HCO3 + ATP = oxaloacetate + ADP + Pi o fructose-6-phosphate = glucose-6-phosphate
please calculate and show work
10. Metabolism. Which of the following reactions is favorable under standard-state conditions (1 M reactants and products; pH = 7)? Calculate the value of AGⓇ for each phosphate transfer reaction. A) ATP + pyruvate ---> phosphoenolpyruvate + ADP B) 3-phosphoglycerate + ATP ---> 1,3-bisphosphoglycerate + ADP C) 1,3-bisphosphoglycerate + creatine ---> creatine phosphate + 3-phosphoglycerate D) glucose 6-phosphate --> glucose 1-phosphate not favorable noer standard
1.
2.
3.
4.
Select all that apply. Identify the reaction(s) of glycolysis inhibited by ATP □ glyceraldehyde-3-phosphate → 1,3-bisphosphoglycerate phosphoenolpyruvate +pyruvate 3-phosphoglycerate ~2-phosphoglycerate 1) fructose-6-phosphate→ fructose-1,6-bisphosphate . glucose glucose-6-phosphate Select all that apply. Alcohol fermentation: consumes ATP as it produces ethanol. O produces carbon dioxide begins as pyruvate is decarboxylated to acetaldehyde in a reaction catalyzed by alcohol dehydrogenase m regenerates NAD requires the enzyme alcohol dehydrogenase, In the figure below, what is the reaction occurring at the location...
3. From data in the table below calculate the AG for each of the following reactions. Show all your work and calculations. (4 points) Phosphoenolpyruvate ADP Pyruvate ATP A) ATP3-Phosphoglycerate ADP 1,3-Biphosphoglycerate B) Standard Free Energies of Hydrolysis of Some Phosphorylated Compounds and Acetyl-CoA (a Thioester) AG (keal/mol) Phosphoenolpyruvate 13-Bisphosphoglycerate (3-phosphoglycerate+ P Phosphocreatine ADP (AMP+ P) ATP (ADP+P ATP (AMP+PP) -14.8 -11.8 -10.3 -7.8 -7.3 -10.9 AMP ( adenosine + P) PP,(2P Glucose 3-phosphate -3.4 -4.0 -6.0 Fructose 6-phosphate Glucose...
Considering the energy changes associated with the individual reactions below, which reaction can be coupled with the hydrolysis of ATP to generate a coupled reaction that is energetically favorable? Energy. change -7.3 kcal/mol ATP + H20 → ADP + HPO42- succinyl CoA + H20 → succinate + HSCOA + -9.4 HPO42- fructose 1,6-bisphosphate + H20 → fructose 6- kcal/mol -3.9 kcal/mol phosphate + HPO42- 1,3-bisphosphoglycerate + H2O → 3- phosphoglycerate + HPO42- -11.8 kcal/mol A) Succinate + HSCOA + HPO42-→...
please help! thanks
TABLE 12-4 Standard Free Energy Change for Phosphate Hydrolysis Compound AGⓇ' (kJ. mol-') Phosphoenolpyruvate -61.9 1,3-Bisphosphoglycerate -49.4 ATP → AMP + PP, -45.6 Phosphocreatine -43.1 ATP ADP + P -30.5 Glucose-1-phosphate -20.9 PP, 2P, -19.2 Glucose-6-phosphate -13.8 Glycerol-3-phosphate -9.2 thioester bond AGⓇ' = -31.5 kJ•mol-1 H20 O CH3 -C-s-CoA I CH3 -C-0- + COA-SH Acetyl-CoA The formation of acetyl CoA from acetate is an ATP driven reaction: Acetate + ATP + COA <--> acetyl COA + AMP...
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