The Q cycle refers to flow of electrons from A) NADH to coenzyme Q via Complex I. B) FADH₂ to coenzyme Q via Complex II. C) coenzyme Q to cytochrome c via Complex III. D) coenzyme Q to NADH. E) none of these

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Quizplus · Accepted Answer

The Q cycle specifically refers to the process where electrons are transferred from coenzyme Q (ubiquinone) to cytochrome c via Complex III in the electron transport chain. This is a crucial step in the process of oxidative phosphorylation, where the energy from electrons is used to pump protons across the mitochondrial membrane, ultimately leading to ATP synthesis.

The Q Cycle Refers to Flow of Electrons from