Oxidative Phosphorylation (Ch. 19) 1. The NADH dehydrogenase complex of the mitochondrial respiratory chain promotes the following series of oxidation-reduction reactions, in which Fe* and Fe2* represent the iron in iron-sulfur centers, Q is ubiquinone, QH2 is ubiquinol, and E is the enzyme: (1) NADH + H* + E-FMN → NAD* + E-FMNH2 (2) E-FMNH2 + 2Fe³+ (3) 2FE2+ + 2H* + Q· → E-FMN + 2Fe²+ + 2H+ 2Fe3+ + QH2 Sum: NADH + H* + Q–→ NAD* + QH2 For each of the three reactions catalyzed by the NADH dehydrogenase complex, identify (a) the electron donor, (b) the electron acceptor, (c) the conjugate redox pair, (d) the reducing agent, and (e) the oxidizing agent.
Oxidative Phosphorylation (Ch. 19) 1. The NADH dehydrogenase complex of the mitochondrial respiratory chain promotes the following series of oxidation-reduction reactions, in which Fe* and Fe2* represent the iron in iron-sulfur centers, Q is ubiquinone, QH2 is ubiquinol, and E is the enzyme: (1) NADH + H* + E-FMN → NAD* + E-FMNH2 (2) E-FMNH2 + 2Fe³+ (3) 2FE2+ + 2H* + Q· → E-FMN + 2Fe²+ + 2H+ 2Fe3+ + QH2 Sum: NADH + H* + Q–→ NAD* + QH2 For each of the three reactions catalyzed by the NADH dehydrogenase complex, identify (a) the electron donor, (b) the electron acceptor, (c) the conjugate redox pair, (d) the reducing agent, and (e) the oxidizing agent.
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 9P
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