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► Coenzyme Q is also known as ubiquinone because of its widespread occurrence<br />
and because its ring structure with the two ketone groups is a quinone.<br />
• Electrons are passed from weaker to<br />
increasingly stronger oxidizing agents, with<br />
energy released at each transfer.<br />
Copyright © 2010 Pearson<br />
Education, Inc.<br />
Chapter Twenty One 6