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Chapter 14 (Part 1). Electron transport. Standard reduction potentials of the major respiratory electron carriers. NADH + H +. CoQ. NAD +. CoQH 2. Complex I. FMN. Fe 2+ S. FMNH 2. Fe 3+ S. Succinate. CoQ. Fumarate. CoQH 2. FAD. Fe 2+ S. FADH 2. Fe 3+ S. Complex II. Q-Cycle. - PowerPoint PPT Presentation
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Chapter 14 (Part 1)
Electron transport
Standard reduction potentials of the major
respiratory electron carriers.
Complex I
NADH + H+
FMN
Fe2+S
CoQ
NAD+ FMNH2 Fe3+S CoQH2
Succinate
FAD
Fe2+S
CoQFumarate FADH2 Fe3+S CoQH2
Complex II
Q-Cycle
UQ
UQ.-
UQH2
Complex III
CoQH2 cyt b ox Fe2+S cyt c1 ox cyt c red
CoQ cyt b red Fe3+S cyt c1 red cyt c ox
cyt c red
cyt a ox
cyt a3 red
O2
cyt c ox cyt a red cyt a3 ox 2 H2O
Complex IV
Glycerol phosphate shuttle
malate/aspartate shuttle system
Electron transport is coupled to oxidative phosphorylation
O2N OH
NO2 H
O2N O
NO2
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