ch18 - Chapter 18: Electron Transport and Oxidative...

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Chapter 18: Electron Transport and Oxidative Phosphorylation Matching Choose the correct answer from the list. Not all the answers will be used. A) shuttle B) matrix C) respiration D) copper E) heme F) chaperone G) plasma H) Coenzyme Q I) reducing J) antioxidant K) wire L) light-driven 1. The inner, convoluted mitochondrial membrane encloses the ______. Ans: B Section: 18.1.A Level of Difficulty: easy Learning Objective: The Mitochondrion 2. Complexes I and II each transfer electrons to ______. Ans: H Section: 18.2.B Level of Difficulty: easy Learning Objective: Electron Transport 3. Electrons from the cytosol are transferred to the matrix via ______ systems. Ans: A Section: 18.1.B Level of Difficulty: easy Learning Objective: The Mitochondrion 4. Protons moving across the membrane by jumping through an arrangement of hydrogen- bonded groups are described as moving through a proton ______. Ans: K Section: 18.2.C Level of Difficulty: moderate Learning Objective: Electron Transport 143
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5. Bacteriorhodopsin is a ______ proton pump. Ans: L Section: 18.2.C Level of Difficulty: easy Learning Objective: Electron Transport 6. The cytochromes contain _____ groups. Ans: E Section: 18.2.B Level of Difficulty: easy Learning Objective: Electron Transport 7. Cytochrome c oxidase contains four redox centers, which include two ______ atoms. Ans: D Section: 18.2.B Level of Difficulty: easy Learning Objective: Electron Transport 8. Bacteria carry out electron transport in the _____ membrane Ans: G Section: 18.3.A Level of Difficulty: easy Learning Objective: Oxidative Phosphorylation 9. The stoichiometric relationship of ATP synthesis to ______ is referred to as the P/O ratio. Ans: C Section: 18.3.C Level of Difficulty: easy Learning Objective: Oxidative Phosphorylation 10. Molecules that prevent oxidative damage by the superoxide radical possess ______ properties. Ans: J Section: 18.4.B Level of Difficulty: easy Learning Objective: Control of Oxidative Metabolism Terms not used: F) chaperone, I) reducing Multiple Choice 11. How many mitochondria does a typical eukaryotic cell contain? A) 2 B) 20 C) 2000 D) 20,000 E) 200,000 144
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Answer: C Section: 18.1.A Level of Difficulty: easy Learning Objective: The Mitochondrion 12. How many ATP molecules are synthesized from the oxidation of 1 NADH molecule? A) 1 B) 1.5 C) 2 D) 2.5 E) 3 Answer: D Section: 18.2.A Level of Difficulty: easy Learning Objective: Electron Transport 13. Cytochrome c oxidase forms a transient radical at a _____ side chain adjacent to the heme a 3 -ligated O 2 . A) serine B) threonine C) tyrosine D) phenylalanine E) tryptophan Answer: C Section: 18.2.F Level of Difficulty: moderate Learning Objective: Electron Transport 14. Newborns generate heat by nonshivering thermogenesis that occurs in ______ tissue. A)
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This note was uploaded on 02/23/2012 for the course CHEM 3633 taught by Professor And during the Spring '12 term at Texas Woman's University.

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ch18 - Chapter 18: Electron Transport and Oxidative...

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