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Arrange the Following Electron Carriers in the Electron Transport Chain,based →\rarr

Question 27

Multiple Choice

Arrange the following electron carriers in the electron transport chain,based on their standard reduction potentials. Cytochroms a3(Fe3+) + e- →\rarr Cytochrome a3 (Fe2+) Eo (volts) = 0.35
Ubiquinone + 2H+ + 2e- →\rarr Ubiquinone H2 Eo (volts) = 0.10
Cytochrome a (Fe3+) + e- →\rarr Cytochrome a (Fe2+) Eo (volts) = 0.29
Cytochrome c (Fe3+) + e- →\rarr Cytochrome c (Fe2+) Eo (volts) = 0.25


A) ubiquinone - cytochrome c- cytochrome a- cytochrome a3
B) cytochrome a3 - cytochrome a - cytochrome c - ubiquinone
C) ubiquinone - cytochrome a - cytochrome a3 - cytochrome c
D) cytochrome c - ubiquinone - cytochrome a - cytochrome a3

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