The isomerization of dihydroxyacetone phosphate to glyceraldehyde 3-phosphate has an equilibrium constant of 0.0475 under the...
- The isomerization of dihydroxyacetone phosphate to
glyceraldehyde 3-phosphate has an equilibrium constant of 0.0475
under the following standard conditions (1 atm, 298K, pH 7).
- Calculate the standard free energy change for this isomerization. (2 points)
- Calculate the free energy of this reaction inside of a cell where the initial concentration of dihydroxyacetone phosphate is typically 2 x 10-4 M and the initial concentration of glyceraldehyde-3- phosphate is typically 3μM. (4 points)
Extra credit (2 points): What do the values above tell you about the importance of standard state free energy compared to the free energy for intracellular reactions?
Homework Answers
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The isomerization of dihydroxyacetone phosphate to
glyceraldehyde 3-phosphate has an equilibrium constant of 0.0475
under the...
For the aqueous reaction dihydroxyacetone phosphate is the reactant and glyceraldehyde 3 phosphate is the product....
For the aqueous reaction dihydroxyacetone phosphate is the reactant and glyceraldehyde 3 phosphate is the product. dihydroxyacetone phosphate↽−−⇀glyceraldehyde−3−phosphate dihydroxyacetone phosphate ↽ − − ⇀ glyceraldehyde − 3 − phosphate the standard change in Gibbs free energy is Δ?°′=7.53 kJ/mol Δ G ° ′ = 7.53 kJ/mol . Calculate Δ? Δ G for this reaction at 298 K 298 K when [dihydroxyacetone phosphate]=0.100 M [dihydroxyacetone phosphate] = 0.100 M and [glyceraldehyde-3-phosphate]=0.00400 M [glyceraldehyde-3-phosphate] = 0.00400 M .
For the aqueous reaction dihydroxyacetone phosphate is the reactant and glyceraldehyde 3 phosphate is the product....
For the aqueous reaction dihydroxyacetone phosphate is the reactant and glyceraldehyde 3 phosphate is the product. dihydroxyacetone phosphate − ⇀ ↽ − glyceraldehyde − 3 − phosphate the standard change in Gibbs free energy is Δ G ° ' = 7.53 kJ/mol . Calculate Δ G for this reaction at 298 K when [dihydroxyacetone phosphate] = 0.100 M and [glyceraldehyde-3-phosphate] = 0.00300 M .
Dihydroxyacetone (DHA) isomerizes to glyceraldehyde 3-phosphate (G3P): K = 0.0475 G3P (aq) DHAP (...
help with 15 and 16
Dihydroxyacetone (DHA) isomerizes to glyceraldehyde 3-phosphate (G3P): K = 0.0475 G3P (aq) DHAP (aq) what is the standard free energy change (AG") for this reaction and is this reaction exergonic or endergonic? R = 8.3 14 J mol-1 K-1 and T = 298K +7.55 kJ mol-1 II. 3.28 kJ mol1 III. -7.55 kJ mol- +3.28 kJ mol so the reaction is Vexergonic VI. endergonic CAlI and V HtI and VI A I and V b....
For the aqueous reaction н CH2ОH H OH СHа-0- CH2-0- dihydroxyacetone phosphate glyceraldehyde-3-phosphate the standard change...
For the aqueous reaction н CH2ОH H OH СHа-0- CH2-0- dihydroxyacetone phosphate glyceraldehyde-3-phosphate the standard change in Gibbs free energy is AG = 7.53 kJ/mol. Calculate AG for this reaction at 298 K when [dihydroxyacetone phosphate] 0.100 M and [glyceraldehyde-3-phosphate] 0.00400 M 108 kJ/mol AG =
Solve using Log not LN Problems and Essays For the reaction dihydroxyacetone phosphate glyceraldehyde 3-phosphate ΔG"=1.8...
Solve using Log not LN
Problems and Essays For the reaction dihydroxyacetone phosphate glyceraldehyde 3-phosphate ΔG"=1.8 kcal/mole What ratio of product/reactant must be maintained in order to keep the reaction going in a forward direction? For the reaction fumarate malate What is the change in free energy when one mole of fumarate reacts to make one mole of 2. K02818 malate under standard conditions?
In another key reaction in glycolysis, dihydroxyacetone phosphate (DHAP) is isomerized into glyceraldehyde-3-phosphate (GAP): The equilibrium...
In another key reaction in glycolysis, dihydroxyacetone
phosphate (DHAP) is isomerized into glyceraldehyde-3-phosphate
(GAP):
The equilibrium constant is 5.4×10−2.
Calculate the equilibrium fraction of GAP from the above, at 37
∘C.
CH2OH HC-OH ΔGor = +7.5 kJ/mol CH2OPO22 CH2OPO2 GAP DHAP
Open with Google Docs The reaction to the right describes the isomerization of dihydroxyacetone phosphate (DHAP)...
Open with Google Docs The reaction to the right describes the isomerization of dihydroxyacetone phosphate (DHAP) to glyceraldehyde-3-phosphate (GAP). It is a chemical equilibrium reaction that happens in the biochemical pathway that is part of the metabolism of glucose. The chemical equilibrium can be treated much like the dynamic equilibrium observed for the vapor pressure. Answer the following questions about this reaction: OH DHAP GAP GAP and the kinetics of GAP DHAP are first order processes. What are the rate...
please help. Juction reaction In one step of glycolysis, glyceraldehyde 3-phosphate is oxidized by NAD+ to...
please help.
Juction reaction In one step of glycolysis, glyceraldehyde 3-phosphate is oxidized by NAD+ to yield 3-phosphoglycerate and NADH. 1) Consider that reaction, in the direction written. Which chemical(s) is/are) losing electrons, and which chemical(s) is(are) gaining electrons? It's best to answer this in a clear complete sentence! 2) Calculate the standard reduction potential for this reaction. Show a reasonable amount of your work (you don't need to show every step in a calculation, but at least show your...
5. During step six of glycolysis glyceraldehyde-3-phosphate (G3P) is converted to 1,3- bisphosphoglycerate (1,3-BPG) and NAD+...
5. During step six of glycolysis glyceraldehyde-3-phosphate (G3P) is converted to 1,3- bisphosphoglycerate (1,3-BPG) and NAD+ is converted to NADH. (You can ignore the concentration of protons in the upcoming calculation.) G3P + P + NAD+ = 1,3 - BPG + NADH + H+ In the human erythrocyte, the concentration of G3P is 0.019 mm, the concentration of 1,3-BPG is 0.001 mM, the concentration of P, is 1.0 mm, and the ratio of NAD+ to NADH is 1000 to 1....
4. What is the commited step of glycolysis and how is this enzyme regulated? 5. Glyceraldehyde-3-phophate...
4. What is the commited step of glycolysis and how is this enzyme regulated? 5. Glyceraldehyde-3-phophate dehydrogenase (GAPDH) is the most important enzyme in glycolysis. a. What two reactions are coupled by GAPDH? b. Draw the structure of the thiohemiacetal intermediate and show the mechanism for generating the acyl thioester intermediate. A+Bred Ared +B For the reaction: AG = Given: ngAE RT In n[Aj{8,al Nernst Equation: AE=A Use the reduction potentials in Table 14-4 to calculate the electromotive force, AE,...
help with 15 and 16
Dihydroxyacetone (DHA) isomerizes to glyceraldehyde 3-phosphate (G3P): K = 0.0475 G3P (aq) DHAP (aq) what is the standard free energy change (AG") for this reaction and is this reaction exergonic or endergonic? R = 8.3 14 J mol-1 K-1 and T = 298K +7.55 kJ mol-1 II. 3.28 kJ mol1 III. -7.55 kJ mol- +3.28 kJ mol so the reaction is Vexergonic VI. endergonic CAlI and V HtI and VI A I and V b....
For the aqueous reaction н CH2ОH H OH СHа-0- CH2-0- dihydroxyacetone phosphate glyceraldehyde-3-phosphate the standard change in Gibbs free energy is AG = 7.53 kJ/mol. Calculate AG for this reaction at 298 K when [dihydroxyacetone phosphate] 0.100 M and [glyceraldehyde-3-phosphate] 0.00400 M 108 kJ/mol AG =
Solve using Log not LN
Problems and Essays For the reaction dihydroxyacetone phosphate glyceraldehyde 3-phosphate ΔG"=1.8 kcal/mole What ratio of product/reactant must be maintained in order to keep the reaction going in a forward direction? For the reaction fumarate malate What is the change in free energy when one mole of fumarate reacts to make one mole of 2. K02818 malate under standard conditions?
In another key reaction in glycolysis, dihydroxyacetone
phosphate (DHAP) is isomerized into glyceraldehyde-3-phosphate
(GAP):
The equilibrium constant is 5.4×10−2.
Calculate the equilibrium fraction of GAP from the above, at 37
∘C.
CH2OH HC-OH ΔGor = +7.5 kJ/mol CH2OPO22 CH2OPO2 GAP DHAP
Open with Google Docs The reaction to the right describes the isomerization of dihydroxyacetone phosphate (DHAP) to glyceraldehyde-3-phosphate (GAP). It is a chemical equilibrium reaction that happens in the biochemical pathway that is part of the metabolism of glucose. The chemical equilibrium can be treated much like the dynamic equilibrium observed for the vapor pressure. Answer the following questions about this reaction: OH DHAP GAP GAP and the kinetics of GAP DHAP are first order processes. What are the rate...
please help.
Juction reaction In one step of glycolysis, glyceraldehyde 3-phosphate is oxidized by NAD+ to yield 3-phosphoglycerate and NADH. 1) Consider that reaction, in the direction written. Which chemical(s) is/are) losing electrons, and which chemical(s) is(are) gaining electrons? It's best to answer this in a clear complete sentence! 2) Calculate the standard reduction potential for this reaction. Show a reasonable amount of your work (you don't need to show every step in a calculation, but at least show your...
5. During step six of glycolysis glyceraldehyde-3-phosphate (G3P) is converted to 1,3- bisphosphoglycerate (1,3-BPG) and NAD+ is converted to NADH. (You can ignore the concentration of protons in the upcoming calculation.) G3P + P + NAD+ = 1,3 - BPG + NADH + H+ In the human erythrocyte, the concentration of G3P is 0.019 mm, the concentration of 1,3-BPG is 0.001 mM, the concentration of P, is 1.0 mm, and the ratio of NAD+ to NADH is 1000 to 1....
4. What is the commited step of glycolysis and how is this enzyme regulated? 5. Glyceraldehyde-3-phophate dehydrogenase (GAPDH) is the most important enzyme in glycolysis. a. What two reactions are coupled by GAPDH? b. Draw the structure of the thiohemiacetal intermediate and show the mechanism for generating the acyl thioester intermediate. A+Bred Ared +B For the reaction: AG = Given: ngAE RT In n[Aj{8,al Nernst Equation: AE=A Use the reduction potentials in Table 14-4 to calculate the electromotive force, AE,...
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