Where Is Oxygen Reduced with Respect to Complex IV of the Electron

question 35

Multiple Choice

Where is oxygen reduced with respect to Complex IV of the electron transport chain?

• A)In the matrix itself,but close to a portion of Complex IV that extends into the matrix.
• B)Near the inner membrane space side of the membrane on the surface of Complex IV.
• C)Near the matrix side of the membrane on the surface of Complex IV.
• D)At a site buried in the protein,but connected to the transport of electrons by a line of water molecules.
• E)Freely in the hydrophobic portion of the lipid bilayer.

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