Homework Answers
Alcohol dehydrogenases are a group of enzymes that occur in many organisms and facilitate the interconversion between alcohol and aldehydes or ketones with the production of (NAD+) to NADH
B. The reaction constant Q is a measure of the relative amount of products and reactants present in the reaction at a given time.Q is closely related to equilibrium constant k. The direction we move to get from Q to K tells how the reactions trying to adjust
When ∆G is positive the minimum value of the reaction quotient is zero
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Question 2a (1 pt): Alcohol dehydrogenase catalyzes the reversible reaction shown. In the space below, write...
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...
TABLE 13-7 Standard Reduction Potentials of Some Biologically Important Half Half-reaction Ero (V) 0.816 0.421 NO...
TABLE 13-7 Standard Reduction Potentials of Some Biologically Important Half Half-reaction Ero (V) 0.816 0.421 NO 2H + 2e >NO H20 Cytochrome f(Fcytochromef Fe) 0.365 Fe(CN) (ferricyanide) +eFe(CN)6 0.36 Cytochrome a3 (Fecytochrome az (Fe*>) 035 0.295 Cytochrome a (Fe3 +cytochrome a (F 0.29 Cytochrome c Fcytochrome c (Fe) 0254 Cytochrome cl (Fe3-ㄧ˙-cytochrome cl (Fe2+) 0.22 Cytochrome (Fecytochrome (Fe 0.077 Ubiquinone 2H 2eubiquinol Fumarate+2H+2esuccinate2 2Ht+2e-H2 (at standard conditions, pH0)0.000 Crotonyl-CoA 2H 2e butyryl-CoA Oxaloacetate+2Ht+2e- malate Pyruvate+ 2H 2elactate Acetaldehyde 2H+2e-ethanol FAD...
The body can break down alcohol through the following reaction: ethanol + NAD +→ acetadehyde +...
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
1. The body can break down alcohol through the following reaction: ethanol + NAD* acetadehyde + NADH+H* Calculate AGº for this reaction at 25°C. The standard reduction potentials are: ethanol...
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...
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+...
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...
Use the chart to answer the questions. Please be correct and careful In one step of...
Use the chart to answer the questions. Please be correct and
careful
In one step of glycolysis, glyceraldehyde 3-phosphate is oxidized by NAD+ to yield 3-phosphoglycerate and NADH. 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 acetaldehyde 2 -0.60 3-phosphoglycerate → glyceraldehyde-3-P 2 -0.55 a-ketoglutarate isocitrate -0.38 NAD+ → NADH 2 -0.32 FMN-FMNH2...
In one step of glycolysis, glyceraldehyde 3-phosphate is oxidized by NAD+ to yield 3-phosphoglycerate and NADH....
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...
Selective Reduction The standard reduction potential for the half-reaction: Sn4+ + 2e - Sn2+ is +0.15...
Selective Reduction The standard reduction potential for the half-reaction: Sn4+ + 2e - Sn2+ is +0.15 V. Consider data from the table of standard reduction potentials for common half-reactions, in your text. For a galvanic cell under standard conditions, which of the following anodic half reactions would produce, at the cathode a spontaneous reduction of Sn4+ to Sn2+ but not Sn2+ to Sn. no yes yes yes yes yes Fe — Fe2+ + 2e- Sn2+ Sn4+ + 2e- Sn Sn2+...
The following two half-reactions are found in a table of standard reduction potentials: Half-Reaction E cytochrome...
The following two half-reactions are found in a table of standard reduction potentials: Half-Reaction E cytochrome c1(Fe3+) +e- → cytochrome c1 (Fe2+) 0.22 V lipoic acid + 2 H+ + 2 e- → dihydrolipoic acid -0.29 V + What is value of Eº for the reaction that will occur involving these two half-reactions that will be spontaneous under standard conditions? 0 0.73 V 0 0.07 V O 0.51 V -0.07 V
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...
TABLE 13-7 Standard Reduction Potentials of Some Biologically Important Half Half-reaction Ero (V) 0.816 0.421 NO 2H + 2e >NO H20 Cytochrome f(Fcytochromef Fe) 0.365 Fe(CN) (ferricyanide) +eFe(CN)6 0.36 Cytochrome a3 (Fecytochrome az (Fe*>) 035 0.295 Cytochrome a (Fe3 +cytochrome a (F 0.29 Cytochrome c Fcytochrome c (Fe) 0254 Cytochrome cl (Fe3-ㄧ˙-cytochrome cl (Fe2+) 0.22 Cytochrome (Fecytochrome (Fe 0.077 Ubiquinone 2H 2eubiquinol Fumarate+2H+2esuccinate2 2Ht+2e-H2 (at standard conditions, pH0)0.000 Crotonyl-CoA 2H 2e butyryl-CoA Oxaloacetate+2Ht+2e- malate Pyruvate+ 2H 2elactate Acetaldehyde 2H+2e-ethanol FAD...
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
1. The body can break down alcohol through the following reaction: ethanol + NAD* acetadehyde + NADH+H* Calculate AGº for this reaction at 25°C. The standard reduction potentials are: ethanol...
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...
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+...
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...
Use the chart to answer the questions. Please be correct and
careful
In one step of glycolysis, glyceraldehyde 3-phosphate is oxidized by NAD+ to yield 3-phosphoglycerate and NADH. 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 acetaldehyde 2 -0.60 3-phosphoglycerate → glyceraldehyde-3-P 2 -0.55 a-ketoglutarate isocitrate -0.38 NAD+ → NADH 2 -0.32 FMN-FMNH2...
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...
Selective Reduction The standard reduction potential for the half-reaction: Sn4+ + 2e - Sn2+ is +0.15 V. Consider data from the table of standard reduction potentials for common half-reactions, in your text. For a galvanic cell under standard conditions, which of the following anodic half reactions would produce, at the cathode a spontaneous reduction of Sn4+ to Sn2+ but not Sn2+ to Sn. no yes yes yes yes yes Fe — Fe2+ + 2e- Sn2+ Sn4+ + 2e- Sn Sn2+...
The following two half-reactions are found in a table of standard reduction potentials: Half-Reaction E cytochrome c1(Fe3+) +e- → cytochrome c1 (Fe2+) 0.22 V lipoic acid + 2 H+ + 2 e- → dihydrolipoic acid -0.29 V + What is value of Eº for the reaction that will occur involving these two half-reactions that will be spontaneous under standard conditions? 0 0.73 V 0 0.07 V O 0.51 V -0.07 V
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