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Under standard conditions, is the oxidation of free FADH2 by ubiquinone sufficiently exergonic to drive the synthesis of ATP? (F = 96.5 kJ/V • mol) ubiquinone + 2H++ 2e¯ → ubiquinol E' = 0.045 V FAD + 2H++ 2e → FADH2 = E' -0.219 V ○ no, as oxidation of FADH2 by ubiquinone generates 33.6 kJ/mol ○ no, as oxidation of FADH2 by ubiquinone generates 50.9 kJ/mol ○ no, as oxidation of FADH2 by ubiquinone generates -25.5 kJ/mol ○ yes, as oxidation of FADH2 by ubiquinone generates -33.6 kJ/mol ○ yes, as oxidation of FADH2 by ubiquinone generates -50.9 kJ/mol

Under standard conditions, is the oxidation of free FADH2 by ubiquinone sufficiently exergonic to drive the synthesis of ATP? (F = 96.5 kJ/V • mol) ubiquinone + 2H++ 2e¯ → ubiquinol E' = 0.045 V FAD + 2H++ 2e → FADH2 = E' -0.219 V ○ no, as oxidation of FADH2 by ubiquinone generates 33.6 kJ/mol ○ no, as oxidation of FADH2 by ubiquinone generates 50.9 kJ/mol ○ no, as oxidation of FADH2 by ubiquinone generates -25.5 kJ/mol ○ yes, as oxidation of FADH2 by ubiquinone generates -33.6 kJ/mol ○ yes, as oxidation of FADH2 by ubiquinone generates -50.9 kJ/mol

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Under standard conditions, is the oxidation of free FADH2 by ubiquinone sufficiently exergonic to drive the synthesis of ATP? (F = 96.5 kJ/V • mol) ubiquinone + 2H++ 2e¯ → ubiquinol E' = 0.045 V FAD + 2H++ 2e → FADH2 = E' -0.219 V ○ no, as oxidation of FADH2 by ubiquinone generates 33.6 kJ/mol ○ no, as oxidation of FADH2 by ubiquinone generates 50.9 kJ/mol ○ no, as oxidation of FADH2 by ubiquinone generates -25.5 kJ/mol ○ yes, as oxidation of FADH2 by ubiquinone generates -33.6 kJ/mol ○ yes, as oxidation of FADH2 by ubiquinone generates -50.9 kJ/mol
Transcribed Image Text:Under standard conditions, is the oxidation of free FADH2 by ubiquinone sufficiently exergonic to drive the synthesis of ATP? (F = 96.5 kJ/V • mol) ubiquinone + 2H++ 2e¯ → ubiquinol E' = 0.045 V FAD + 2H++ 2e → FADH2 = E' -0.219 V ○ no, as oxidation of FADH2 by ubiquinone generates 33.6 kJ/mol ○ no, as oxidation of FADH2 by ubiquinone generates 50.9 kJ/mol ○ no, as oxidation of FADH2 by ubiquinone generates -25.5 kJ/mol ○ yes, as oxidation of FADH2 by ubiquinone generates -33.6 kJ/mol ○ yes, as oxidation of FADH2 by ubiquinone generates -50.9 kJ/mol
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