Biochemistry : Electron Transport and Oxidative Phosphorylation

Study concepts, example questions & explanations for Biochemistry

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Example Questions

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Example Question #114 : Carbohydrate Metabolism

Which of the following correctly matches the phase of cellular respiration with its location in the cell?

Possible Answers:

Electron transport chain . . . mitochondrial matrix

Glycolysis . . . mitochondrial matrix

Pyruvate dehydrogenase complex . . . mitochondrial matrix

Krebs cycle . . . intermembrane space

Electron transport chain . . . cytoplasm

Correct answer:

Pyruvate dehydrogenase complex . . . mitochondrial matrix

Explanation:

Glycolysis occurs in the cytoplasm. Pyruvate dehydrogenase complex occurs in the mitochondrial matrix. Krebs cycle occurs in the mitochondrial matrix. Electron transport chain protein complexes are embedded in the mitochondrial inner membrane.

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