What is the standard free energy change (AG"), for the reduction of coenzyme Q by NADH as carried out by complex I (NADH-coenzyme Q reductase) of the electron transport pathway. Given: NAD + 2H" + 2e → NADH +H* Eo' = -0.320V CoQ (UQ) + 2 H* + 2 e COQH, (UQH,) Eo' = +0.060V (Faraday's constant = 96.485 kJ/V/mol)

What is the standard free energy change (AG"), for the reduction of coenzyme Q by NADH as carried out by complex I (NADH-coenzyme Q reductase) of the electron transport pathway. Given: NAD + 2H" + 2e → NADH +H* Eo' = -0.320V CoQ (UQ) + 2 H* + 2 e COQH, (UQH,) Eo' = +0.060V (Faraday's constant = 96.485 kJ/V/mol)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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2. The electron transfer potential of NADH and FADH2, relative to O2, drives oxidative phosphorylation and ATP synthesis. Oxidation of NADH occurs by the following reaction (1) : (1) 0.5 02 + NADH + H* H20 + NAD* The reaction above can be expressed in terms of the following half reactions: (2) 0.5 O2 + 2 H* + 2 e > H20 (3) NAD+ + 2 H* + 2 e → NADH E. E, = -0.32 V = +0.82 V Calculate AE'" and AGO for the oxidation of NADH (Reaction 1). а. b. What is AG'º for the synthesis of ATP from ADP? c. Using your results from Parts (a) and (b), explain how the electron transfer potential of NADH drives ATP synthesis.
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