Complex II links the citric acid cycle and oxidative phosphorylation.i) With the help of the half reactions given in Table 1, formulate the redox equation for the oxidation of succinate and reduction of ubiquinone. Table 1: Biochemical Standard Reduction PotentialsHalf ReactionCytochrome c(Fe³+) + e- 2 cytochrome c(Fe²+)Plastoquinone + 2H+ + 2e-plastoquinolUbiquinone + 2H+ + 2e- 2 ubiquinolFumarate + 2H+ +2esuccinateNAD+ + H+ + 2e-2NADHEO (V)0.2200.0800.0450.031-0.315

The citric acid cycle, also known as the Krebs cycle or tricarboxylic acid (TCA) cycle, is a series…

Complex II links the citric acid cycle and oxidative phosphorylation. i) With the help of the half reactions given in Table 1, formulate the redox equation for the oxidation of succinate and reduction of ubiquinone.

Complex II links the citric acid cycle and oxidative phosphorylation. i) With the help of the half reactions given in Table 1, formulate the redox equation for the oxidation of succinate and reduction of ubiquinone.

Biochemistry

9th Edition

ISBN:9781305961135

Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Publisher:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Chapter20: Electron Transport And Oxidative Phosphorylation

Section: Chapter Questions

Problem 13RE: MATHEMATICAL Which is more favorable energetically, the oxidation of succinate to fumarate by NAD+...

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Question

Complex II links the citric acid cycle and oxidative phosphorylation.

i) With the help of the half reactions given in Table 1, formulate the redox equation for the oxidation of succinate and reduction of ubiquinone.

Table 1: Biochemical Standard Reduction Potentials
Half Reaction
Cytochrome c(Fe³+) + e- 2 cytochrome c(Fe²+)
Plastoquinone + 2H+ + 2e-
plastoquinol
Ubiquinone + 2H+ + 2e- 2 ubiquinol
Fumarate + 2H+ +2e
succinate
NAD+ + H+ + 2e-
2
NADH
EO (V)
0.220
0.080
0.045
0.031
-0.315

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Step 1: citric acid cycle and oxidative phosphorylation.

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Step 2: Complex II

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Step 3: Half reactions

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Step 4: Redox reaction

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