- (a) Calculate the standard free energy change as a pair of electrons is trans- ferred from succinate to molecular oxygen in the mitochondrial respira- tory chain. (b) Based on your answer in part a, calculate the maximum number of protons that could be pumped out of the matrix into the intermembrane space as these electrons are passed to oxygen. Assume 25 °C, ApH = 1.4; Aựt = 0.175 V (matrix negative). (c) At which site(s) are these protons pumped?

- (a) Calculate the standard free energy change as a pair of electrons is trans- ferred from succinate to molecular oxygen in the mitochondrial respira- tory chain. (b) Based on your answer in part a, calculate the maximum number of protons that could be pumped out of the matrix into the intermembrane space as these electrons are passed to oxygen. Assume 25 °C, ApH = 1.4; Aựt = 0.175 V (matrix negative). (c) At which site(s) are these protons pumped?

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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Question

- (a) Calculate the standard free energy change as a pair of electrons is trans-
ferred from succinate to molecular oxygen in the mitochondrial respira-
tory chain.
(b) Based on your answer in part a, calculate the maximum number of
protons that could be pumped out of the matrix into the intermembrane
space as these electrons are passed to oxygen. Assume 25 °C, ApH = 1.4;
Aựt = 0.175 V (matrix negative).
(c) At which site(s) are these protons pumped?

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