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b. Write a paragraph or bullet point list to go along with the figure 11.8b describing the role of each of the blue proteins/enzymes shown in the picture. 11.8b b. Dihydroxyacetone phosphate Glycerol-3-P Glycerol-3-P dehydrogenase Succinate dehydrogenase KAKOR 1000000 JOLANTOLA FADH, FADH₂ Fumarate Succinate Citrate cycle 2e 2H- FADH₂ Fatty acids Acetyl-CoA 2H 4 H+ 111 Intermembrane ETF-Q oxidoreductase space 2x1e Cytc 2x1e 2 e 2H+O₂ H₂O 2 H matrix 2 H Mitochondrial C. What is the main function of the electron transport chain and why do the electrons always flow from complex I to complex III to complex IV to oxygen? (1-2 sentences)

b. Write a paragraph or bullet point list to go along with the figure 11.8b describing the role of each of the blue proteins/enzymes shown in the picture. 11.8b b. Dihydroxyacetone phosphate Glycerol-3-P Glycerol-3-P dehydrogenase Succinate dehydrogenase KAKOR 1000000 JOLANTOLA FADH, FADH₂ Fumarate Succinate Citrate cycle 2e 2H- FADH₂ Fatty acids Acetyl-CoA 2H 4 H+ 111 Intermembrane ETF-Q oxidoreductase space 2x1e Cytc 2x1e 2 e 2H+O₂ H₂O 2 H matrix 2 H Mitochondrial C. What is the main function of the electron transport chain and why do the electrons always flow from complex I to complex III to complex IV to oxygen? (1-2 sentences)

Biochemistry
Biochemistry
6th Edition
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Reginald H. Garrett, Charles M. Grisham
Chapter20: Electron Transport And Oxidative Phosphorylation
Section: Chapter Questions
Problem 11P
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This is Biochemistry, there is a max of 3 parts for the question due to guidelines. Please answer each section to the best of your ability. Please provide thorough and clear work with answers. Thank you.

1. a) Energetics of the electron transport. In the oxidative phase of oxidative phosphorylation, electrons are passed from NADH and ultimately to molecular oxygen through an electron transport chain comprised of multiple redox centers. Assume that an electron is passed through the chain along the route shown below. Clearly, there are steps missing, but we will skip those to emphasize the energetics of the electron transport. Calculate DE° and DG" for each electron transfer step and record the values in the table. The reduction potentials for each of the redox centers are given in table 11.1. (F=96.4 kJ/V mol) Route: 1 NADH à (Fe-S)N-5,6 à Coenzyme Q à Cytochrome c, à Cytochrome a3 à O, Table 11.1 STANDARD REDUCTION POTENTIALS (E°') FOR SELECTED ELECTRON CARRIERS IN THE ELECTRON TRANSPORT SYSTEM Electron carriers NAD + H+ +2e → NADH Complex I (NADH-ubiquinone oxidoreductase) Fe-S (N-1b) Fe-S (N-3.4) Fe-S (N-5,6) Complex II (succinate dehydrogenase) FAD + 2 H+2e → FADH₂ (enzyme bound) Fe-S (S-1) Cytochrome b560 Coenzyme Q + 2H+ + 2 e Complex III (ubiquinone-cytochrome c oxidoreductase) Cytochrome b Cytochrome b Fe-S Cytochrome c₁ Cytochrome c (Cyt c) Complex IV (cytochrome c oxidase) Cytochrome a CUA Cytochrome a O₂+ 2H+2e →H₂O E" (V) -0.32 -0.25 -0.24 -0.27 -0.04 -0.03 -0.08 +0.04 +0.03 -0.03 +0.28 +0.21 +0.23 +0.21 +0.24 +0.38 +0.82 Direction of e flow e transferred from à to NADH à (Fe-S)N-5,6 (Fe-S)N-3,6 à Coenzyme Q Coenzyme Q à Cytochrome cl Cytochrome cl à Cytochrome a3| Cytochrome a3à 02 E-nF E=GⓇ
Transcribed Image Text:1. a) Energetics of the electron transport. In the oxidative phase of oxidative phosphorylation, electrons are passed from NADH and ultimately to molecular oxygen through an electron transport chain comprised of multiple redox centers. Assume that an electron is passed through the chain along the route shown below. Clearly, there are steps missing, but we will skip those to emphasize the energetics of the electron transport. Calculate DE° and DG" for each electron transfer step and record the values in the table. The reduction potentials for each of the redox centers are given in table 11.1. (F=96.4 kJ/V mol) Route: 1 NADH à (Fe-S)N-5,6 à Coenzyme Q à Cytochrome c, à Cytochrome a3 à O, Table 11.1 STANDARD REDUCTION POTENTIALS (E°') FOR SELECTED ELECTRON CARRIERS IN THE ELECTRON TRANSPORT SYSTEM Electron carriers NAD + H+ +2e → NADH Complex I (NADH-ubiquinone oxidoreductase) Fe-S (N-1b) Fe-S (N-3.4) Fe-S (N-5,6) Complex II (succinate dehydrogenase) FAD + 2 H+2e → FADH₂ (enzyme bound) Fe-S (S-1) Cytochrome b560 Coenzyme Q + 2H+ + 2 e Complex III (ubiquinone-cytochrome c oxidoreductase) Cytochrome b Cytochrome b Fe-S Cytochrome c₁ Cytochrome c (Cyt c) Complex IV (cytochrome c oxidase) Cytochrome a CUA Cytochrome a O₂+ 2H+2e →H₂O E" (V) -0.32 -0.25 -0.24 -0.27 -0.04 -0.03 -0.08 +0.04 +0.03 -0.03 +0.28 +0.21 +0.23 +0.21 +0.24 +0.38 +0.82 Direction of e flow e transferred from à to NADH à (Fe-S)N-5,6 (Fe-S)N-3,6 à Coenzyme Q Coenzyme Q à Cytochrome cl Cytochrome cl à Cytochrome a3| Cytochrome a3à 02 E-nF E=GⓇ
1. a) Energetics of the electron transport. In the oxidative phase of oxidative phosphorylation, electrons are passed from NADH and ultimately to molecular oxygen through an electron transport chain comprised of multiple redox centers. Assume that an electron is passed through the chain along the route shown below. Clearly, there are steps missing, but we will skip those to emphasize the energetics of the electron transport. Calculate DE° and DG" for each electron transfer step and record the values in the table. The reduction potentials for each of the redox centers are given in table 11.1. (F=96.4 kJ/V mol) Route: 1 NADH à (Fe-S)N-5,6 à Coenzyme Q à Cytochrome c, à Cytochrome a3 à O, Table 11.1 STANDARD REDUCTION POTENTIALS (E°') FOR SELECTED ELECTRON CARRIERS IN THE ELECTRON TRANSPORT SYSTEM Electron carriers NAD + H+ +2e → NADH Complex I (NADH-ubiquinone oxidoreductase) Fe-S (N-1b) Fe-S (N-3.4) Fe-S (N-5,6) Complex II (succinate dehydrogenase) FAD + 2 H+2e → FADH₂ (enzyme bound) Fe-S (S-1) Cytochrome b560 Coenzyme Q + 2H+ + 2 e Complex III (ubiquinone-cytochrome c oxidoreductase) Cytochrome b Cytochrome b Fe-S Cytochrome c₁ Cytochrome c (Cyt c) Complex IV (cytochrome c oxidase) Cytochrome a CUA Cytochrome a O₂+ 2H+2e →H₂O E" (V) -0.32 -0.25 -0.24 -0.27 -0.04 -0.03 -0.08 +0.04 +0.03 -0.03 +0.28 +0.21 +0.23 +0.21 +0.24 +0.38 +0.82 Direction of e flow e transferred from à to NADH à (Fe-S)N-5,6 (Fe-S)N-3,6 à Coenzyme Q Coenzyme Q à Cytochrome cl Cytochrome cl à Cytochrome a3| Cytochrome a3à 02 E-nF E=GⓇ
Transcribed Image Text:1. a) Energetics of the electron transport. In the oxidative phase of oxidative phosphorylation, electrons are passed from NADH and ultimately to molecular oxygen through an electron transport chain comprised of multiple redox centers. Assume that an electron is passed through the chain along the route shown below. Clearly, there are steps missing, but we will skip those to emphasize the energetics of the electron transport. Calculate DE° and DG" for each electron transfer step and record the values in the table. The reduction potentials for each of the redox centers are given in table 11.1. (F=96.4 kJ/V mol) Route: 1 NADH à (Fe-S)N-5,6 à Coenzyme Q à Cytochrome c, à Cytochrome a3 à O, Table 11.1 STANDARD REDUCTION POTENTIALS (E°') FOR SELECTED ELECTRON CARRIERS IN THE ELECTRON TRANSPORT SYSTEM Electron carriers NAD + H+ +2e → NADH Complex I (NADH-ubiquinone oxidoreductase) Fe-S (N-1b) Fe-S (N-3.4) Fe-S (N-5,6) Complex II (succinate dehydrogenase) FAD + 2 H+2e → FADH₂ (enzyme bound) Fe-S (S-1) Cytochrome b560 Coenzyme Q + 2H+ + 2 e Complex III (ubiquinone-cytochrome c oxidoreductase) Cytochrome b Cytochrome b Fe-S Cytochrome c₁ Cytochrome c (Cyt c) Complex IV (cytochrome c oxidase) Cytochrome a CUA Cytochrome a O₂+ 2H+2e →H₂O E" (V) -0.32 -0.25 -0.24 -0.27 -0.04 -0.03 -0.08 +0.04 +0.03 -0.03 +0.28 +0.21 +0.23 +0.21 +0.24 +0.38 +0.82 Direction of e flow e transferred from à to NADH à (Fe-S)N-5,6 (Fe-S)N-3,6 à Coenzyme Q Coenzyme Q à Cytochrome cl Cytochrome cl à Cytochrome a3| Cytochrome a3à 02 E-nF E=GⓇ
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