Oxidative Phosphorylation and Electron Transpor2

Oxidative Phosphorylation and Electron Transpor2 - II of...

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Oxidative Phosphorylation and Electron Transport Problems Problem : What two molecules are oxidized in the electron transport chain? Solution for Problem 1 >> NADH and FADH are oxidized in the electron transport chain. Problem : How is oxidation linked to electron transport? Solution for Problem 2 >> An oxidation reaction involves the loss of electrons. When NADH and FADH are oxidized, they lose electrons. These electrons flow into the electron transport chain once they are released from NADH and FADH. Problem : What is the destination of the electrons that flow through the electron transport chain? Solution for Problem 3 >> The electrons in the electron transport chain ultimately flow to a molecule of oxygen, thereby reducing it to water. Problem : What reaction of the citric acid cycle produces the FADH that is oxidized by complex
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Unformatted text preview: II of the electron transport chain? Solution for Problem 4 >> The reaction catalyzed by the enzyme succinate dehydrogenase, which converts succinate to fumarate produces a molecule of FADH. Problem : Describe the nature of the electrochemical gradient established across the mitochondrial inner membrane as a result of electron transport. Solution for Problem 5 >> As a result of electron transport, protons are pumped across the inner mitochondrial membrane out of the matrix into the intermembrane space. Because so many positive protons are pumped into the intermembrane space and the flow of electrons in inner membrane, a net positive charge is built up in the intermembrane space. A net negative charge is also built up in the matrix space....
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This note was uploaded on 01/24/2012 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

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