Homework Answers
NAD+ + H+ + 2e’ <====> NADH -0.32
1/2 O2 + 2H+ + 2e’ <====> H2O 0.816
Standard reduction potential = 0.816 V – (-0.032 V) = 1.14 V (exergonic reaction)
C6H12O6 (glucose) + 6 O2 -> 6 CO2 + 6 H2O
Standard reduction potential = -1.24 (exergonic reaction)
6CO2+12H2O--->C6H12O6+6O2+6H2O
Standard reduction potential = +1.24 (endergonic reaction)
FADH2 → FAD
Eo' = +0.15 V (endergonic reaction)
CoQH2 + 2 cytochrome c1 (Fe3+) + 2 H+ → CoQ + 2 cytochrome c1 (Fe2+) + 4 H+
Eo' = +1.00 V (endergonic reaction)
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Using the table of reduction potentials (Eo) for the half-reactions shown, match the given redox reactions...
E Volts) 6 co2/glucose 0.43] -0.5 I-0.42] -0.4 NAD /NADH 0.32] -03 -0.2 -0.1 Fumarate/succinate 0.03]...
E Volts) 6 co2/glucose 0.43] -0.5 I-0.42] -0.4 NAD /NADH 0.32] -03 -0.2 -0.1 Fumarate/succinate 0.03] 0.0 [0.10] +0.1 2 H /H2 I- 0.27] FADIFADH2 0.18] S°/H2S CoQ/CoQH2 +0.2 Cyt C (Fe )Cyt C (Fe+) [0.25] +0.3- +0.4 +0.5 +0.6 No,INO2 [0.421 Fe3+/Fe2+ 4 0,H20 (0.82108 10.77) +07
I need this answered and explained! Redox couple Eo (V) CO2/glucose (-0.43) 24 e 2H /H2...
I need this answered and explained!
Redox couple Eo (V) CO2/glucose (-0.43) 24 e 2H /H2 (-0.42) 2e CO2/methanol(-0.38) 6 e NAD /NADH (-0.32) 2 e -0.50 --0.40 -0.30 CO2/acetate (-0.28) 8 e E-0.20 S /H2S (-0.28)2 e SO22 /H2S(-0.22) 8 e Pyruvate/lactate (-0.19) 2 e SO62-S2032(+0.024) 2 e -0.10 0.0 Fumarate/succinate (+0.03) 2 e +0.10 Cytochrome boxred (+0.035) 1 e +0.20 Fe3 /Fe2 (+0.2) 1 e, (pH 7) Ubiquinone ox/red (+0.11) 2 e Cytochrome Cox/red (+0.25) 1 e Cytochrome...
Two half-reactions are shown with their standard cell potentials. If a galvanic cell is constructed using...
Two half-reactions are shown with their standard cell potentials. If a galvanic cell is constructed using them, which electrode would be the anode, and what would the cell potential be? Fe2+ (aq) + 2e → Fe(s); E=-0.44 V Ag+(aq) + 1e → Ag(s); E=0.80 V O a. Iron, 1.24 V O b. Silver, 0.36 V O c. Iron, 0.36 V O d. Iron, -0.36 V O e. Silver, -0.36 V
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...
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...
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...
Using the standard reduction potentials listed, calculate the equilibrium constant for each of the following reactions...
Using the standard reduction potentials listed, calculate the
equilibrium constant for each of the following reactions at 298
K.
A) Fe(s)+Ni2+(aq)→Fe2+(aq)+Ni(s)
Express your answer using two significant figures.
B) Co(s)+2H+(aq)→Co2+(aq)+H2(g)
Express your answer using two significant figures.
C) 10Br−(aq)+2MnO−4(aq)+16H+(aq)→2Mn2+(aq)+8H2O(l)+5Br2(l)
Express your answer using two significant figure.
E°(V) -0.83 +0.88 +1.78 +0.79 Half-Reaction E°(V) Half-Reaction Ag+ (aq) + - Ag(s) +0.80 2 H20(1) + 2 e — H2(8) + 2 OH+ (aq) AgBr(s) + - Ag(s) + Br" (aq) +0.10 HO2...
E Volts) 6 co2/glucose 0.43] -0.5 I-0.42] -0.4 NAD /NADH 0.32] -03 -0.2 -0.1 Fumarate/succinate 0.03] 0.0 [0.10] +0.1 2 H /H2 I- 0.27] FADIFADH2 0.18] S°/H2S CoQ/CoQH2 +0.2 Cyt C (Fe )Cyt C (Fe+) [0.25] +0.3- +0.4 +0.5 +0.6 No,INO2 [0.421 Fe3+/Fe2+ 4 0,H20 (0.82108 10.77) +07
I need this answered and explained!
Redox couple Eo (V) CO2/glucose (-0.43) 24 e 2H /H2 (-0.42) 2e CO2/methanol(-0.38) 6 e NAD /NADH (-0.32) 2 e -0.50 --0.40 -0.30 CO2/acetate (-0.28) 8 e E-0.20 S /H2S (-0.28)2 e SO22 /H2S(-0.22) 8 e Pyruvate/lactate (-0.19) 2 e SO62-S2032(+0.024) 2 e -0.10 0.0 Fumarate/succinate (+0.03) 2 e +0.10 Cytochrome boxred (+0.035) 1 e +0.20 Fe3 /Fe2 (+0.2) 1 e, (pH 7) Ubiquinone ox/red (+0.11) 2 e Cytochrome Cox/red (+0.25) 1 e Cytochrome...
Two half-reactions are shown with their standard cell potentials. If a galvanic cell is constructed using them, which electrode would be the anode, and what would the cell potential be? Fe2+ (aq) + 2e → Fe(s); E=-0.44 V Ag+(aq) + 1e → Ag(s); E=0.80 V O a. Iron, 1.24 V O b. Silver, 0.36 V O c. Iron, 0.36 V O d. Iron, -0.36 V O e. Silver, -0.36 V
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...
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...
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...
Using the standard reduction potentials listed, calculate the
equilibrium constant for each of the following reactions at 298
K.
A) Fe(s)+Ni2+(aq)→Fe2+(aq)+Ni(s)
Express your answer using two significant figures.
B) Co(s)+2H+(aq)→Co2+(aq)+H2(g)
Express your answer using two significant figures.
C) 10Br−(aq)+2MnO−4(aq)+16H+(aq)→2Mn2+(aq)+8H2O(l)+5Br2(l)
Express your answer using two significant figure.
E°(V) -0.83 +0.88 +1.78 +0.79 Half-Reaction E°(V) Half-Reaction Ag+ (aq) + - Ag(s) +0.80 2 H20(1) + 2 e — H2(8) + 2 OH+ (aq) AgBr(s) + - Ag(s) + Br" (aq) +0.10 HO2...
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