The reaction
glyceraldehyde-3-phosphate + NAD++Pi→
1,3 diphosphoglycerate + NADH+H+
has ΔrG∘′=6.3kJmol−1.
If the standard reduction potential ε∘′ of NAD+ is -0.324 V and the reaction
1,3 diphosphoglycerate + ADP→ 3-phosphoglycerate + ATP
has ΔrG∘′=−18.8kJ/mol, calculate the standard reduction
potential ε∘′ for the reaction
3-phosphoglycerate +2e−+3H+→ glyceraldehyde-3-phosphate +H2O.
The reaction glyceraldehyde-3-phosphate + NAD++Pi→ 1,3 diphosphoglycerate + NADH+H+ has ΔrG∘′=6.3kJmol−1. If the standard reduction potential...
In the conversion of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate, NADH is made and phosphate is added. What drives this reaction? O The hydrolysis of ATP to phosphorylate carbon 1 of glyceraldehyde-3-phosphate. The reduction of glyceraldehyde-3-phosphate. The reduction of NAD+. O The oxidation of glyceraldehyde-3-phosphate.
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...
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....
1. (4 points) The reduction potential for conversion of glyceraldehyde-3-phosphate to 3- phosphoglycerate is -0.536 V. Using this value, determine the AG" of the reaction below. Y OPO,2 + NAD + P. + NADH 2O3PO Y OH OPO,2 OH
1) Which of the following glycolysis intermediates can be generated from glycerol? dihydroxyacetone phosphate 1,3-bisphosphoglycerate glyceraldehyde-3-phosphate 3-phosphoglycerate 2) Which of the following is the oxidizing agent in the reaction that converts succinate to fumarate? FAD, NADH, NAD+, succinate, Coenzyme A, or FADH2 3) Five NADH molecules in the mitochondria can be made into _____ number of ATP.
For the reaction: A + Bred = Ared + Box AGⓇ' = -nFAE Given: Nernst Equation: AE = AE" - 37) The oxidation of glyceraldehyde 3-phosphate by GAPDH is governed by the following reduction potentials: 3-phosphoglycerate + 2e →glyceraldehyde 3-phosphate E' = -0.55 NAD+ + H+ + 2e → NADH E'' = -0.32 a) (3 pts) What is the standard reduction potentials, AE', for this reaction? b) (4 pts) Show how to calculate of the standard Gibbs free energy, AG"....
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 chemicals) is(are) losing electrons, and which chemical(s) is(are) gaining electrons? It's best to answer this in a clear complete sentence. 2 2 2 Table 10-2 Standard Reduction Potentials for Redox Pairs of Biological Relevance* Redox Pair Number of (oxidized form → reduced form) Electrons E.(V) acetate pyruvate 2 -0.70 succinate → a-ketoglutarate 2 -0.67 acetate...
17. The reaction shown below describes the formation of 1,3-disphosphoglycerate from glyceraldehyde-3-phosphate. This reaction is coupled with the formation of NADH from NAD+ Which statement below is correct? CH,-0-P CHOH c=0 3CH2--0- CHOH 'c=0 он a. The reaction of glyceraldehyde-3-phosphate to form 1,3-disphosphoglycerate is an oxidation b. The reaction of glyceraldehyde-3-phosphate to form 1,3-disphosphoglycerate is a reduction c. The reaction of glyceraldehyde-3-phosphate to form 1,3-disphosphoglycerate is a hydrolysis. d. The reaction of glyceraldehyde-3-phosphate to form 1,3-disphosphoglycerate is an isomerization.
QUESTION 8 Consider the reaction: Malate + NAD → Oxaloacetate + NADH (AG'º = +29.7 kJ/mol) A cell at 25°C has the following concentrations of these compounds: malate = 0.5 mm oxaloacetate=0.00002 mM • NAD = 1 mM NADH = 0.04 mm . Is the reaction spontaneous? QUESTION 9 Consider the reaction: 1,3-Bisphosphoglycerate (1,3-BPG) + ADP→ 3-Phosphoglycerate (3-PG) + ATP (AG' = -18.9 kJ/mol) A cell at 25°C has the following concentrations of these compounds: 1,3-BPG = 0.003 Mm ADP...
35) The overall reaction of glyceraldehyde 3-phosphate dehydrogenase (GAP glyceraldehyde 3-phosphate + NAD+ + P = 1,3-bisphosphoglycerate + NADH GAPDH couples together two reactions with favorable (AG'°-50 kj/mol) and unfavorable (AG' +50 kJ/mol) Gibbs free energies, respectively. a) (6 pts) Write the balanced chemical equations for the two separate reactions. b) (6 pts) Draw the structure of the thiohemiacetal intermediate and show the mechanism for generating the acyl thioester intermediate. 36) (4 pts) Under anaerobic conditions, lactic acid fermentation regenerates...