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⁺) E_o (volts) = 0.35
Ubiquinone + 2H⁺ + 2e^- $\rarr$ Ubiquinone H₂ E_o (volts) = 0.10
Cytochrome a (Fe³⁺⁾ + e^- $\rarr$ Cytochrome a (Fe²⁺) E_o (volts) = 0.29
Cytochrome c (Fe³⁺⁾ + e^- $\rarr$ Cytochrome c (Fe²⁺) E_o (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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