Homework Answers
Ans) Standard Free energy change(ΔG°)=- 100.360KJ/mol.
Solution:
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Q7) Using Table 9.1 (page 294) in your textbook and/or in the slides of chapter 9...
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...
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...
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...
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...
Question 2 (1 point) Given the following half reactions with their corresponding standard reduction potentials, which...
Question 2 (1 point) Given the following half reactions with their corresponding standard reduction potentials, which of the following is/are true for the overall reaction happening under standard conditions? S+ 2H+ + 2e + H2S E' = -0.243 V Fe3+ + e + Fe2+ E'' - 0.771 V (CHECK THE ONE(S) THAT IS/ARE CORRECT) 1) Fe3+ has a greater affinity for electrons than S. 2) AE'O = 1.014 V for the spontaneous reaction. 3) Fe2+ is the reducing agent. 4)...
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
I ain't certain about how to solve this question I might be over thinking it, but...
I ain't certain about how to solve this question I might be over
thinking it, but it has been bothering me a lot. I think the answer
would E=-0.30 but I ain't certain.
Eo' (V) -0.50 -0.40 -0.30 -0.20 -0.10 Redox couple con/glucose (-0.43) 24 e 2H+ /Hz (-0.42) 2 e CO2/methanol (-0.38) 6 e NAD+/NADH (-0.32) 2 e co/acetate (-0.28) 8 e S/H,5 (-0.28) 2 e 5042/H25 (-0.22) 8 e Pyruvate/lactate (-0.19) 2 e 5,062-15, 0,2-(+0.024) 2 e Fumarate/succinate...
Using the values listed in the table provided, determine the deltaG associated with teh reaction listed...
Using the values listed in the table provided, determine the
deltaG associated with teh reaction listed below:
NADPH + 1/2O2 + H+ --> NADP+ +H2O
(V) Half-Reaction 0.815 O, 2 H 2 e H3O SO 2 H+ 2 e SO H2O 0.48 NO3 2 H 2 e NO3 0.42 Cytochrome a3 (Fe3+) e cytochrome a (Fe2+) 0.385 O2 (g) 2 H+ 2 e 2O2. 0.295 Cytochrome a (Fes e cytochrome a (Fe2+) 0.29 Cytochrome c (Fe3+) e cytochrome c (Fe...
When answering Parts a-h, consider only the molecules and ions, Fe^2+(aq), Cd(OH)2(s), SO4^2-(aq), Al(s), I^-(aq), and Cr2O7^2-(aq), under standard state conditions. (1 pt each) Use standard reduction...
When answering Parts a-h, consider only the molecules and ions,
Fe^2+(aq), Cd(OH)2(s), SO4^2-(aq), Al(s), I^-(aq),
and Cr2O7^2-(aq), under standard state conditions. (1 pt each)
Use standard reduction table.
a) Which of these molecules and ions are oxidizing agents?
b) Which of these molecules and ions are reducing agents?
c) List the oxidizing agents from part a in DECREASING order of
oxidizing agent strength. (strongest OA to weakest OA)
d) List the reducing agents from part b in DECREASING order of...
Use the table below as the basis for the calculations needed to answer the following questions,...
Use the table below as the basis for the calculations needed to answer the following questions, Standard Reduction Potentials for Redox Pairs of Biological Relevance Redox Pair (oxidized form Number of Standard Reduction reduced form) electrons Potential, Volts Acetate → pyruvate 2 -0.70 Succinate-ketoglutarate 2 -0.67 Acetate acetaldehyde 2 -0.60 3-phosphoglycerate → 2 -0.55 glyceraldehyde-3-P a-ketoglutarate isocitrate 2 -0.38 2 -0.32 2 -0.30 N -0.29 NAD+ NADH FMNFMNH2 1,3-bisphosphoglycerate → glyceraldehyde-3-P Acetaldehyde ethanol Pyruvate lactate FAD FADH2 Oxaloacetatemalate 2 -0.20...
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...
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...
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...
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...
Question 2 (1 point) Given the following half reactions with their corresponding standard reduction potentials, which of the following is/are true for the overall reaction happening under standard conditions? S+ 2H+ + 2e + H2S E' = -0.243 V Fe3+ + e + Fe2+ E'' - 0.771 V (CHECK THE ONE(S) THAT IS/ARE CORRECT) 1) Fe3+ has a greater affinity for electrons than S. 2) AE'O = 1.014 V for the spontaneous reaction. 3) Fe2+ is the reducing agent. 4)...
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
I ain't certain about how to solve this question I might be over
thinking it, but it has been bothering me a lot. I think the answer
would E=-0.30 but I ain't certain.
Eo' (V) -0.50 -0.40 -0.30 -0.20 -0.10 Redox couple con/glucose (-0.43) 24 e 2H+ /Hz (-0.42) 2 e CO2/methanol (-0.38) 6 e NAD+/NADH (-0.32) 2 e co/acetate (-0.28) 8 e S/H,5 (-0.28) 2 e 5042/H25 (-0.22) 8 e Pyruvate/lactate (-0.19) 2 e 5,062-15, 0,2-(+0.024) 2 e Fumarate/succinate...
Using the values listed in the table provided, determine the
deltaG associated with teh reaction listed below:
NADPH + 1/2O2 + H+ --> NADP+ +H2O
(V) Half-Reaction 0.815 O, 2 H 2 e H3O SO 2 H+ 2 e SO H2O 0.48 NO3 2 H 2 e NO3 0.42 Cytochrome a3 (Fe3+) e cytochrome a (Fe2+) 0.385 O2 (g) 2 H+ 2 e 2O2. 0.295 Cytochrome a (Fes e cytochrome a (Fe2+) 0.29 Cytochrome c (Fe3+) e cytochrome c (Fe...
When answering Parts a-h, consider only the molecules and ions,
Fe^2+(aq), Cd(OH)2(s), SO4^2-(aq), Al(s), I^-(aq),
and Cr2O7^2-(aq), under standard state conditions. (1 pt each)
Use standard reduction table.
a) Which of these molecules and ions are oxidizing agents?
b) Which of these molecules and ions are reducing agents?
c) List the oxidizing agents from part a in DECREASING order of
oxidizing agent strength. (strongest OA to weakest OA)
d) List the reducing agents from part b in DECREASING order of...
Use the table below as the basis for the calculations needed to answer the following questions, Standard Reduction Potentials for Redox Pairs of Biological Relevance Redox Pair (oxidized form Number of Standard Reduction reduced form) electrons Potential, Volts Acetate → pyruvate 2 -0.70 Succinate-ketoglutarate 2 -0.67 Acetate acetaldehyde 2 -0.60 3-phosphoglycerate → 2 -0.55 glyceraldehyde-3-P a-ketoglutarate isocitrate 2 -0.38 2 -0.32 2 -0.30 N -0.29 NAD+ NADH FMNFMNH2 1,3-bisphosphoglycerate → glyceraldehyde-3-P Acetaldehyde ethanol Pyruvate lactate FAD FADH2 Oxaloacetatemalate 2 -0.20...
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