Homework Answers
- Reaction A & Reaction B are thermodynamically unfavourable as for both of the reaction change in Gibb's free energy is positive.
- Thermodynamically favourable coupled reactions are reaction A&C , reaction B&C because for both of the coupled reaction net change of Gibb's free energy is negetive.
- For coupled reaction A&C
G = (-30.5+13.8) kJ/mol = -16.7 kJ/mol - For coupled reaction B&C G
= (-30.5+ 16.3) kJ/mol = -14.2 kJ/mol.
G = (-30.5+13.8) kJ/mol = -16.7 kJ/molWe were unable to transcribe this image
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Glycolysis is the process by which energy is harvested from glucose by living things. Several of...
Glycolysis is the process by which energy is harvested from glucose by living things. Several of the reactions of glyco...
Glycolysis is the process by
which energy is harvested from glucose by living things. Several of
the reactions of glycolysis are thermodynamically unfavorable
(nonspontaneous), but proceed when they are coupled with other
reactions.
Which of these reactions is (are) unfavorable? Select all that apply. Which of these reactions can be coupled so that overall reaction is favorable? Select all that apply. What is the net change in free energy if one selection from part (b) is coupled so that the...
ignment Score: 69.4% Resources C Give Up? Feedback Try Again stion 7 of 12 > Attempt...
ignment Score: 69.4% Resources C Give Up? Feedback Try Again stion 7 of 12 > Attempt 5 Glycolysis is the process by which energy is harvested from glucose by living things. Several of the reactions of glycolysis are thermodynamically unfavorable, nonspontaneous, but proceed when they are coupled with other reactions, A. P, + glucose glucose-6 phosphate + H,0 AG = 3.30 kcal/mol B. P, + fructose - 6 phosphate-fructose-1,6-bisphosphate + HO AG = 3.90 kcal/mol C. ATP+H,0 — ADP+P AG=...
In the first step of glycolysis, the given two reactions are coupled... thank you! In the...
In the first step of glycolysis, the given two reactions are
coupled...
thank you!
In the first step of glycolysis, the given two reactions are coupled. reaction 1 glucose P АТР + H,О AG+13.8 kJ/mol AG 30.5 kJ/mol glucose-6-phosphate +H20 ADPP reaction 2: Answer the four questions about the first step of glycolysis Is reaction 2 spontaneous or nonspontaneous? nonspontaneous spontaneous Complete the net chemical equation АТР+ + glucose Calculate the overall AG for the coupled reaction. glucose-6-phosphate ADP AG...
In the first step of glycolysis, the given two reactions are coupled. reaction 1: reaction 2:...
In the first step of glycolysis, the given two reactions are coupled. reaction 1: reaction 2: glucose +P: ATP + H2O glucose-6-phosphate + H,O + ADP + P AG = +13.8 kJ/mol AG = -30.5 kJ/mol Answer the four questions about the first step of glycolysis. Is reaction 2 spontaneous or nonspontaneous? O nonspontaneous O spontaneous Complete the net chemical equation. ATP+ + Calculate the overall AG for the coupled reaction. AG = kJ/mol Is the first step in glycolysis...
The first reaction in glycolysis is the phosphorylation of glucose:
The first reaction in glycolysis is the phosphorylation of glucose:Pi+glucose⟶glucose−6−phosphate+H2OThis is a thermodynamically unfavorable process, with ΔG∘′=+13.8kJ/mol.Part AIn a liver cell at 37 ∘C the concentrations of both phosphate and glucose are normally maintained at about 5 mM each. =>theequilibrium concentration of glucose-6-phosphate = 1.2*10^-7 MPart BThis very low concentration of the desired product would be unfavorable for glycolysis. In fact, the reaction is coupled to ATP hydrolysis to give the overall reactionATP+glucose⟶glucose−6−phosphate+ADP+H+ΔG∘′ for the coupled reaction is -18.4 kJ/mol
2. The first step in glycolysis is catalyzed by the enzyme herokinase: glucose + ATP glucose-6-P...
2. The first step in glycolysis is catalyzed by the enzyme herokinase: glucose + ATP glucose-6-P + ADP This reaction can be thought of as two coupled reactions (P is phosphate): (1) glucose + P + glucose-6-P (2) ATP + ADP + P For the overall reaction, AG" = -16.7 kJ/mol. For the hydrolysis of ATP (equation 2), AG = -310 kJ/mol. All reactions are performed at 37°C. (a) What is AGº for reaction 1? Iglucose - 6-11 if AG...
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-→...
A highly regulated reaction in glycolysis involves the addition of a second phosphate to fructose-6-phosphate, which...
A highly regulated reaction in glycolysis involves the addition
of a second phosphate to fructose-6-phosphate, which could be be
written as:
Fructose-6-phostphate + Pi à Fructose-1,6-bisphosphate + H2O
The ∆Go’ for this reaction is +16.8 kJ/mol
In a muscle cell at 37 oC, assume the concentration of
Fructose-6phosphate is 0.014 mM and the concentration of phosphate
is 1 mM.
a. What would be the equilibrium concentration of
fructose-1,6bisphosphate under these conditions?
b. What is Keq for this reaction?
Show...
1) SHOW WORK 12. During glycolysis, glucose 1-phosphate is converted to fructose 6-phosphate in two successive...
1) SHOW WORK
12. During glycolysis, glucose 1-phosphate is converted to fructose 6-phosphate in two successive reactions: glucose 1-phosphate → glucose 6-phosphate glucose 6-phosphate + fructose 6-phosphate AG'' = -7.1 kJ/mol AG'º = +1.7 kJ/mol 13. The standard free-energy changes for the reactions below are given. phosphocreatine → creatine + Pi ATP → ADP + Pi AG" = 43.0 kJ/mol AG" = -30.5 kJ/mol What is the overall AG' for the following reaction? Iw a dee Hydrolysis of 1 M...
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...
Glycolysis is the process by
which energy is harvested from glucose by living things. Several of
the reactions of glycolysis are thermodynamically unfavorable
(nonspontaneous), but proceed when they are coupled with other
reactions.
Which of these reactions is (are) unfavorable? Select all that apply. Which of these reactions can be coupled so that overall reaction is favorable? Select all that apply. What is the net change in free energy if one selection from part (b) is coupled so that the...
ignment Score: 69.4% Resources C Give Up? Feedback Try Again stion 7 of 12 > Attempt 5 Glycolysis is the process by which energy is harvested from glucose by living things. Several of the reactions of glycolysis are thermodynamically unfavorable, nonspontaneous, but proceed when they are coupled with other reactions, A. P, + glucose glucose-6 phosphate + H,0 AG = 3.30 kcal/mol B. P, + fructose - 6 phosphate-fructose-1,6-bisphosphate + HO AG = 3.90 kcal/mol C. ATP+H,0 — ADP+P AG=...
In the first step of glycolysis, the given two reactions are
coupled...
thank you!
In the first step of glycolysis, the given two reactions are coupled. reaction 1 glucose P АТР + H,О AG+13.8 kJ/mol AG 30.5 kJ/mol glucose-6-phosphate +H20 ADPP reaction 2: Answer the four questions about the first step of glycolysis Is reaction 2 spontaneous or nonspontaneous? nonspontaneous spontaneous Complete the net chemical equation АТР+ + glucose Calculate the overall AG for the coupled reaction. glucose-6-phosphate ADP AG...
In the first step of glycolysis, the given two reactions are coupled. reaction 1: reaction 2: glucose +P: ATP + H2O glucose-6-phosphate + H,O + ADP + P AG = +13.8 kJ/mol AG = -30.5 kJ/mol Answer the four questions about the first step of glycolysis. Is reaction 2 spontaneous or nonspontaneous? O nonspontaneous O spontaneous Complete the net chemical equation. ATP+ + Calculate the overall AG for the coupled reaction. AG = kJ/mol Is the first step in glycolysis...
2. The first step in glycolysis is catalyzed by the enzyme herokinase: glucose + ATP glucose-6-P + ADP This reaction can be thought of as two coupled reactions (P is phosphate): (1) glucose + P + glucose-6-P (2) ATP + ADP + P For the overall reaction, AG" = -16.7 kJ/mol. For the hydrolysis of ATP (equation 2), AG = -310 kJ/mol. All reactions are performed at 37°C. (a) What is AGº for reaction 1? Iglucose - 6-11 if AG...
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-→...
A highly regulated reaction in glycolysis involves the addition
of a second phosphate to fructose-6-phosphate, which could be be
written as:
Fructose-6-phostphate + Pi à Fructose-1,6-bisphosphate + H2O
The ∆Go’ for this reaction is +16.8 kJ/mol
In a muscle cell at 37 oC, assume the concentration of
Fructose-6phosphate is 0.014 mM and the concentration of phosphate
is 1 mM.
a. What would be the equilibrium concentration of
fructose-1,6bisphosphate under these conditions?
b. What is Keq for this reaction?
Show...
1) SHOW WORK
12. During glycolysis, glucose 1-phosphate is converted to fructose 6-phosphate in two successive reactions: glucose 1-phosphate → glucose 6-phosphate glucose 6-phosphate + fructose 6-phosphate AG'' = -7.1 kJ/mol AG'º = +1.7 kJ/mol 13. The standard free-energy changes for the reactions below are given. phosphocreatine → creatine + Pi ATP → ADP + Pi AG" = 43.0 kJ/mol AG" = -30.5 kJ/mol What is the overall AG' for the following reaction? Iw a dee Hydrolysis of 1 M...
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...
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