Homework Answers
n= no. of moles
∆G°=30.03KJ
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3. The Key for the reaction catalyzed by malate dehydrogenase is 5.45 x 10-6. What is...
Electron transport chain. The enzyme succinate dehydrogenase is part of the citric acid cycle (Fig. 17.15)...
Electron transport chain. The enzyme succinate dehydrogenase is part of the citric acid cycle (Fig. 17.15) and the electron transport chain (Fig. 18.6). Calculate the free energy (ΔG) of the reaction catalyzed by succinate dehydrogenase under physiological conditions: 2 mM succinate, 0.5 mM fumarate, 2 mM FAD, and 0.2 mM FADH2. [Recall that ΔG = -n F ΔEo. See Table 18.1 for the relevant standard reduction potential (ΔEo).]
Consider the malate dehydrogenase reaction from the citric acid cycle. Given the listed concentrations, calculate the...
Consider the malate dehydrogenase reaction from the citric acid
cycle. Given the listed concentrations, calculate the free energy
change for this reaction at energy change for this reaction at 37.0
∘ C (310 K). Δ G ∘ ′ for the reaction is + 29.7 kJ/mol . Assume
that the reaction occurs at pH 7.
thank you
Consider the malate dehydrogenase reaction from the citric acid cycle. Given the listed concentrations, calculate the free energy change for this reaction at energy...
Consider the malate dehydrogenase reaction from the citric acid cycle. Given the listed concentrations, calculate the...
Consider the malate dehydrogenase reaction from the citric acid cycle. Given the listed concentrations, calculate the free energy change for this reaction at energy change for this reaction at 37.0°C (310 K), AG'' for the reaction is +29.7 kJ/mol. Assume that the reaction occurs at pH 7. (malate) = 1.33 mm [oxaloacetate] = 0.200 mm [NAD) - 440 mm [NADH) - 180 mM AG: 36.9 KJ-mol-
Consider the malate dehydrogenase reaction from the citric acid cycle. Given the listed concentrations, calculate the...
Consider the malate dehydrogenase reaction from the citric acid cycle. Given the listed concentrations, calculate the free energy change for this reaction at energy change for this reaction at 37.0°C (310 K). AG' for the reaction is +29.7 kJ/mol. Assume that the reaction occurs at pH 7. [malate) = 1.43 mm [oxaloacetate) = 0.150 mM [NAD+] = 220 mm [NADH] = 88 mm kJ.mol-1 AG:
the citric acid cycle has 8 enzymes: citrate synthase, aconitase, isocitrase dehydrogenase,.... 1 Jom L C...
the citric acid cycle has 8 enzymes: citrate synthase,
aconitase, isocitrase dehydrogenase,....
1 Jom L C Tegulation TCA cycle (Ch. 16) 1. The citric acid cycle has eight enzymes: citrate synthase, aconitase, isocitrate dehydrogenase, a-ketoglutarate dehydrogenase, succinyl-CoA synthetase, succinate dehydrogenase, fumarase, and malate dehydrogenase. (a) Write a balanced equation for the reaction catalyzed by each enzyme. (b) Name the cofactor(s) required by each enzyme reaction. (c) For each enzyme determine which of the following describes the type of reaction(s) catalyzed:...
Question 2a (1 pt): Alcohol dehydrogenase catalyzes the reversible reaction shown. In the space below, write...
Question 2a (1 pt): Alcohol dehydrogenase catalyzes the reversible reaction shown. In the space below, write the two half-reactions for the redox reaction. Then, determine the cell potential (AE) and standard Gibbs free energy change (AG) for the reaction. (Hint: Use Tables 13.7a/b in "Metabolism Overview") Acetaldehyde + NADH+H→ Ethanol + NAD Question 2b (1 pt): Under physiological conditions, the reaction actually proceeds in the direction that has a positive AG. What would be the minimum value of the reaction...
Question 5: Below is the chemical equation catalyzed by isocitrate dehydrogenase (i... the third reaction in...
Question 5: Below is the chemical equation catalyzed by isocitrate dehydrogenase (i... the third reaction in the citric acid cycle). α-ketoglutarate + CO2 + NADH + H+ isocitrate NAD (a) Calculate the physiological ΔG of the isocitrate dehydrogenase reaction at 25°C and pl 17.0 given: [NAD+]IN ADH]-8; [α-ketoglutarate] = 0.1 mM: [isocitrate] = 0.02 mM; standard state conditions for CO2 and H: and ΔG (b) Is this reaction a likely site for metabolic control? Explain. 。,--21.0 kJ/mol?
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,...
Part N What is the AE.' for the oxidation of succinate to fumarate by coenzyme Q...
Part N What is the AE.' for the oxidation of succinate to fumarate by coenzyme Q under standard conditions? Express your answer using two decimal places. Η ΑΣΦ ? AE0' = V Submit Request Answer Redox Pair (oxidized form + reduced form) Number of electrons Reduction Potential, Volts Acetate → pyruvate 2 -0.70 Succinate → a- ketoglutarate 2 -0.67 Acetate → acetaldehyde 2 -0.60 3-phosphoglycerate + glyceraldehyde- 3-P -0.55 N a-ketoglutarate → isocitrate 2 -0.38 NAD+ + NADH 2 -0.32...
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?
Consider the malate dehydrogenase reaction from the citric acid
cycle. Given the listed concentrations, calculate the free energy
change for this reaction at energy change for this reaction at 37.0
∘ C (310 K). Δ G ∘ ′ for the reaction is + 29.7 kJ/mol . Assume
that the reaction occurs at pH 7.
thank you
Consider the malate dehydrogenase reaction from the citric acid cycle. Given the listed concentrations, calculate the free energy change for this reaction at energy...
Consider the malate dehydrogenase reaction from the citric acid cycle. Given the listed concentrations, calculate the free energy change for this reaction at energy change for this reaction at 37.0°C (310 K), AG'' for the reaction is +29.7 kJ/mol. Assume that the reaction occurs at pH 7. (malate) = 1.33 mm [oxaloacetate] = 0.200 mm [NAD) - 440 mm [NADH) - 180 mM AG: 36.9 KJ-mol-
Consider the malate dehydrogenase reaction from the citric acid cycle. Given the listed concentrations, calculate the free energy change for this reaction at energy change for this reaction at 37.0°C (310 K). AG' for the reaction is +29.7 kJ/mol. Assume that the reaction occurs at pH 7. [malate) = 1.43 mm [oxaloacetate) = 0.150 mM [NAD+] = 220 mm [NADH] = 88 mm kJ.mol-1 AG:
the citric acid cycle has 8 enzymes: citrate synthase,
aconitase, isocitrase dehydrogenase,....
1 Jom L C Tegulation TCA cycle (Ch. 16) 1. The citric acid cycle has eight enzymes: citrate synthase, aconitase, isocitrate dehydrogenase, a-ketoglutarate dehydrogenase, succinyl-CoA synthetase, succinate dehydrogenase, fumarase, and malate dehydrogenase. (a) Write a balanced equation for the reaction catalyzed by each enzyme. (b) Name the cofactor(s) required by each enzyme reaction. (c) For each enzyme determine which of the following describes the type of reaction(s) catalyzed:...
Question 2a (1 pt): Alcohol dehydrogenase catalyzes the reversible reaction shown. In the space below, write the two half-reactions for the redox reaction. Then, determine the cell potential (AE) and standard Gibbs free energy change (AG) for the reaction. (Hint: Use Tables 13.7a/b in "Metabolism Overview") Acetaldehyde + NADH+H→ Ethanol + NAD Question 2b (1 pt): Under physiological conditions, the reaction actually proceeds in the direction that has a positive AG. What would be the minimum value of the reaction...
Question 5: Below is the chemical equation catalyzed by isocitrate dehydrogenase (i... the third reaction in the citric acid cycle). α-ketoglutarate + CO2 + NADH + H+ isocitrate NAD (a) Calculate the physiological ΔG of the isocitrate dehydrogenase reaction at 25°C and pl 17.0 given: [NAD+]IN ADH]-8; [α-ketoglutarate] = 0.1 mM: [isocitrate] = 0.02 mM; standard state conditions for CO2 and H: and ΔG (b) Is this reaction a likely site for metabolic control? Explain. 。,--21.0 kJ/mol?
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,...
Part N What is the AE.' for the oxidation of succinate to fumarate by coenzyme Q under standard conditions? Express your answer using two decimal places. Η ΑΣΦ ? AE0' = V Submit Request Answer Redox Pair (oxidized form + reduced form) Number of electrons Reduction Potential, Volts Acetate → pyruvate 2 -0.70 Succinate → a- ketoglutarate 2 -0.67 Acetate → acetaldehyde 2 -0.60 3-phosphoglycerate + glyceraldehyde- 3-P -0.55 N a-ketoglutarate → isocitrate 2 -0.38 NAD+ + NADH 2 -0.32...
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?
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