The body can break down alcohol through the following reaction: ethanol + NAD +→ acetadehyde + NADH + H+ Calculate Delta G* for this reaction at 25C.
The standard reduction potentials are:
ethanol →acetaldehyde + 2H+ + 2e- E = -0.197V
NAD+ + H+ + 2e- → NADH E= -0.320V
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The body can break down alcohol through the following reaction:
ethanol + NAD +→ acetadehyde +...
1. The body can break down alcohol through the following reaction: ethanol + NAD + acetadehyde...
1. The body can break down alcohol through the following reaction: ethanol + NAD + acetadehyde + NADH+H* Calculate AGⓇ for this reaction at 25°C. The standard reduction potentials are: ethanol - acetaldehyde + 2H+ + 2e E-.0.197 V NAD + H+ +2e - NADH E = -0.320 V HINT: These reactions are already balanced and written in the correct direction. You do not need to flip either of these reactions. 2. Electrolysis is used to plate zinc from a...
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...
For the reaction: L-Malate + NAD⁺ ← → Oxaloacetate + NADH ΔE' = -0.154 n=2 T=298...
For the reaction: L-Malate + NAD⁺ ← → Oxaloacetate + NADH
ΔE' = -0.154
n=2
T=298 K
using the equation
ln (Keq) = (nFΔE'৹)/(RT)
Find Keq?
I know this sounds just plug and chug but am confused about the
signs of the numbers when plugged in. Please only answer if you're
of what you're doing!
Standard Reduction Potential of Some Biologically Important Half-Reactions, at pH 7.0 and 25°C (298 K) Half-reaction E' (V) 2H+ + 2e — H, (at standard...
Need help with part 2 The standard potentials for the reduction of nicotinamide adenine dinucleotide (NAD+)...
Need help with part 2
The standard potentials for the reduction of nicotinamide adenine dinucleotide (NAD+) and oxaloacetate (reactants in the multistep metabolism of glucose) are as follows: NAD (aq)2H -(aq) +2e - NADH(aq)H (aq) E°= -0.330 V Oxaloacetate2 (aq) + 2H°(aq) +2e"(aq) - malate2 (ag) E° = -0.166 V _ (0.5 point) Feedback Part 1 Calculate the standard potential for the following reaction: Oxaloacetate2 (aq) +NADH (aq) +H (aq) - malate2 (aq)NAD 0.164 Part 2 (0.5 point) xFeedback Calculate...
If anyone can provide help that would be great! Thanks! Calculate the actual AG for the...
If anyone can provide help that would be great!
Thanks!
Calculate the actual AG for the reaction in which molecular oxygen is reduced by the electron carrier NADH. 1202 + NADH+H→ H2O + NAD The concentrations of O2 and NADH are 1.00M and H20 and NAD are 0.100M. The relevant half reactions and their E values are: (1) % O2 + 2H+ +2e → H20 (2) NAD + H+ +2e → NADH E' = 0.816 V E' = -0.320 V
Name Standard Reduction Potentials of Some Biologically Important Half-Reactions TABLE 13-7 Amino...
Name Standard Reduction Potentials of Some Biologically Important Half-Reactions TABLE 13-7 Amino acids pki k2 pkR Half-reaction 2.34 9.60 2.34 9.69 1.99 10.96 2.32 9.62 2.36 9.60 2.36 9.68 Ubiquinone + 2H+ + 2e-→ ubiquinol + H: 0.045 Fumarate:-+ 2H. + 2e-→ succinate"- 2H+ + 2e-→ H2 (at standard conditions, pH 0) 0.000 Crotonyl-CoA+2H +2butyryl-CoA0.015 Oxaloacetate:-+ 2H+ + 2e-→ malate"--0.166 Pyruvate +2H2elactate Acetaldehyde + 2H+ + 2e-→ ethanol FAD +2HFADH2 Glutathione + 2H+ + 2e- Alanine Proline 0.031 228 921...
A) In this reaction, Acetaldehyde + NADH + H+ --> ethanol + NAD+ 1. Acetaldehyde is...
A) In this reaction, Acetaldehyde + NADH + H+ --> ethanol + NAD+ 1. Acetaldehyde is the reducing agent 2. Acetaldehyde is the oxidizing agent 3. NAD+ is oxidized 4. NADH is the oxidizing agent B) In ATP synthase complex, the F0 portion: 1. serves as proton channel 2. goes through conformational change to release ATP 3. oversees transport of ATP from mitochondria of eukaryotic cells 4. pumps proton against concentration gradient
2. The image at right shows NAD+ and ethanol in the active site of alcohol dehydrogenase....
2. The image at right shows NAD+ and ethanol in the active site of alcohol dehydrogenase. The reaction catalyzed by this enzyme is: CH3CHO + NADH + H+ + CH3CH2OH + NAD+. Which of the statements below concerning this reaction is true? O The proton (H) is likely supplied by a basic amino acid such as lysine in its positively charged form. O The reaction mechanism involves an alkoxide intermediate. O This reaction establishes a stereocenter in ethanol. O NADH...
Q7) Using Table 9.1 (page 294) in your textbook and/or in the slides of chapter 9...
Q7) Using Table 9.1 (page 294) in your textbook and/or in the slides of chapter 9 (online material), determine the standard free energy (AG) for the following reaction in kJ/mol. [Faraday constant = 96.5 kJ/V] [10 points) FADH2 + 1/202 - FAD + 2H+ + H:0 Show detailed calculation. Final answer without clear work will not be considered. TABLE 9.1 Standard Reduction Potentials Redox Half-Reaction 2H+ + 2e" - H a-Ketoglutarate + CO, + 2H+ 2e isocitrate NADP+ + H+...
glutathione reductase catalyzes the following reaction: GSSG (oxidized glutathione) + NADPH+H ----> 2GSH (reduced Glutathione)+ NADP+....
glutathione reductase catalyzes the following reaction: GSSG (oxidized glutathione) + NADPH+H ----> 2GSH (reduced Glutathione)+ NADP+. NAD+ + H + 2e --> NADH E= -0.32 V NADP+ + H + 2e NADPH E= -0.32 V GSSG + + 2H + 2e 2GSH E= -0.23 V a) Calculate delta G for glutathione reductase reaction in the direction shown using E values above b) Suppose that a cell contained an isoform of glutathione reductase that used NADH instead of NADPH...
1. The body can break down alcohol through the following reaction: ethanol + NAD + acetadehyde + NADH+H* Calculate AGⓇ for this reaction at 25°C. The standard reduction potentials are: ethanol - acetaldehyde + 2H+ + 2e E-.0.197 V NAD + H+ +2e - NADH E = -0.320 V HINT: These reactions are already balanced and written in the correct direction. You do not need to flip either of these reactions. 2. Electrolysis is used to plate zinc from a...
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...
For the reaction: L-Malate + NAD⁺ ← → Oxaloacetate + NADH
ΔE' = -0.154
n=2
T=298 K
using the equation
ln (Keq) = (nFΔE'৹)/(RT)
Find Keq?
I know this sounds just plug and chug but am confused about the
signs of the numbers when plugged in. Please only answer if you're
of what you're doing!
Standard Reduction Potential of Some Biologically Important Half-Reactions, at pH 7.0 and 25°C (298 K) Half-reaction E' (V) 2H+ + 2e — H, (at standard...
Need help with part 2
The standard potentials for the reduction of nicotinamide adenine dinucleotide (NAD+) and oxaloacetate (reactants in the multistep metabolism of glucose) are as follows: NAD (aq)2H -(aq) +2e - NADH(aq)H (aq) E°= -0.330 V Oxaloacetate2 (aq) + 2H°(aq) +2e"(aq) - malate2 (ag) E° = -0.166 V _ (0.5 point) Feedback Part 1 Calculate the standard potential for the following reaction: Oxaloacetate2 (aq) +NADH (aq) +H (aq) - malate2 (aq)NAD 0.164 Part 2 (0.5 point) xFeedback Calculate...
If anyone can provide help that would be great!
Thanks!
Calculate the actual AG for the reaction in which molecular oxygen is reduced by the electron carrier NADH. 1202 + NADH+H→ H2O + NAD The concentrations of O2 and NADH are 1.00M and H20 and NAD are 0.100M. The relevant half reactions and their E values are: (1) % O2 + 2H+ +2e → H20 (2) NAD + H+ +2e → NADH E' = 0.816 V E' = -0.320 V
Name Standard Reduction Potentials of Some Biologically Important Half-Reactions TABLE 13-7 Amino acids pki k2 pkR Half-reaction 2.34 9.60 2.34 9.69 1.99 10.96 2.32 9.62 2.36 9.60 2.36 9.68 Ubiquinone + 2H+ + 2e-→ ubiquinol + H: 0.045 Fumarate:-+ 2H. + 2e-→ succinate"- 2H+ + 2e-→ H2 (at standard conditions, pH 0) 0.000 Crotonyl-CoA+2H +2butyryl-CoA0.015 Oxaloacetate:-+ 2H+ + 2e-→ malate"--0.166 Pyruvate +2H2elactate Acetaldehyde + 2H+ + 2e-→ ethanol FAD +2HFADH2 Glutathione + 2H+ + 2e- Alanine Proline 0.031 228 921...
2. The image at right shows NAD+ and ethanol in the active site of alcohol dehydrogenase. The reaction catalyzed by this enzyme is: CH3CHO + NADH + H+ + CH3CH2OH + NAD+. Which of the statements below concerning this reaction is true? O The proton (H) is likely supplied by a basic amino acid such as lysine in its positively charged form. O The reaction mechanism involves an alkoxide intermediate. O This reaction establishes a stereocenter in ethanol. O NADH...
Q7) Using Table 9.1 (page 294) in your textbook and/or in the slides of chapter 9 (online material), determine the standard free energy (AG) for the following reaction in kJ/mol. [Faraday constant = 96.5 kJ/V] [10 points) FADH2 + 1/202 - FAD + 2H+ + H:0 Show detailed calculation. Final answer without clear work will not be considered. TABLE 9.1 Standard Reduction Potentials Redox Half-Reaction 2H+ + 2e" - H a-Ketoglutarate + CO, + 2H+ 2e isocitrate NADP+ + H+...
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