Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 7, Problem 4TYU
The final electron acceptor of the electron transport chain that functions in aerobic oxidative phosphorylation is
- A. oxygen.
- B. water.
- C. NAD+.
- D. pyruvate.
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During oxidative phosphorylation, the proton motive force that is generated by electron transport is used to:
a. Generate the substrates (ADP and Pi) for the ATP synthase.
b. Create a pore in the inner mitochondrial membrane.
c. Oxidize NADH to NAD+.
d. Induce a conformational change in the ATP synthase.
ATP production during the Electron Transport Chain is driven by which of the
following?
A. Movement of H+ ions across mitochondrial membranes via ATP synthase
B. Movement of electrons down a gradient of charge
C. Oxygen accepting H+ ions
D. NADH and FADH2 donating phosphate to ADP
E. Release of CO2
Which of the following statements about aerobic respiration is true?
a.
Oxygen is the final electron acceptor in the citric acid cycle.
b.
Coenzyme-A is a substrate in the reaction that generates a key reactant for the citric acid cycle.
c.
Redox reactions occur in the electron transport chain (ETC), but not during the citric acid cycle and not during glycolysis.
d.
The citric acid cycle is the main ATP producer in aerobic respiration.
Chapter 7 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 7.1 - Compare and contrast aerobic and anaerobic...Ch. 7.1 - Name and describe the two ways in which ATP is...Ch. 7.1 - Prob. 3CCCh. 7.2 - During step 6 in Figure 7.9, which molecule acts...Ch. 7.3 - Name the molecules that conserve most of the...Ch. 7.3 - Prob. 2CCCh. 7.4 - Prob. 1CCCh. 7.4 - Prob. 2CCCh. 7.4 - MAKE CONNECTIONS Membranes must be fluid to...Ch. 7.5 - Prob. 1CC
Ch. 7.5 - WHAT IF? A glucose-fed yeast cell is moved from an...Ch. 7.6 - MAKE CONNECTIONS Compare the structure of a fat...Ch. 7.6 - Prob. 2CCCh. 7.6 - WHAT IF? During intense exercise, can a muscle...Ch. 7 - The immediate energy source that drives ATP...Ch. 7 - Which metabolic pathway is common to both...Ch. 7 - In mitochondria, exergonic redox reactions A. are...Ch. 7 - The final electron acceptor of the electron...Ch. 7 - What is the oxidizing agent in the following...Ch. 7 - When electrons flow along the electron transport...Ch. 7 - Most co, from catabolism is released during A....Ch. 7 - DRAW IT The graph here shows the pH difference...Ch. 7 - INTERPRET THE DATA Phosphofructokinase is an...Ch. 7 - Prob. 10TYUCh. 7 - FOCUS ON EVOLUTION ATP synthases are found in the...Ch. 7 - Prob. 12TYUCh. 7 - Prob. 13TYU
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- The final electron acceptor in the electron transport chain is: a. NADH b. FADH2 c. O2 d. ATParrow_forwardWhich of the following statements concerning ATP synthesis is NOT true? a. The open conformation of the ATP synthase is for releasing ATP. b. The gamma subunit in the stalk responds to the flow of H+ and rotates the assembly counterclockwise and thus change the conformations of the active site to synthesize ATP. c. The tight conformation of the ATP synthase is for converting ADP and phosphate to ATP. d. The loose conformation of the ATP synthase is for binding ADP and phosphate. e. Ten protons are required to catalyze the rotation of the subunits so that one ATP is synthesized. Clear my choicearrow_forwardThe following chemicals are involved in electron transport. Which of these chemicals has the strongest pull on electrons? a. NADH b. FADH2 c. O2 d. Ubiquinonearrow_forward
- Anaerobic respiration differs from aerobic respiration in that . . A. the electron transport chain is not used in anaerobic respiration. B. more ATP is produced in the TCA cycle of anaerobic respiration. C. only aerobes can use glucose. D.anaerobes employ a different final electron acceptor than aerobes.arrow_forwardThe ultimate acceptor of electrons in the nadh electron transport chain is a. H+ b. ATP c. O2 d. NADHarrow_forwardThe link between electron transport and ATP synthesis a. is a high-energy intermediate like phosphoenol pyruvate. b. is the transfer of electrons to ATP synthase. c. is a proton gradient. d. depends on the absence of oxygen.arrow_forward
- The conversion of 1 mol of fructose 1,6-bisphosphate to 2 mol of pyruvate by the glycolytic pathway results in a net formation of: a. 1 mol of NAD+ and 2 mol of ATP. b. 1 mol of NADH and 1 mol of ATP. c. 2 mol of NAD+ and 4 mol of ATP. d. 2 mol of NADH and 2 mol of ATP. e. 2 mol of NADH and 4 mol of ATP.arrow_forwardWhich of the following is NOT true of the electron transport chain? a. It produces NADH, as a result of electrons being transferred from glucose to NAD+ b. End products include CO2, water, and pyruvate c. It allows for the controlled release of energy for ATP synthesis d. It is part of the oxidative phosphorylation processarrow_forwardThe molecule that acts as the final electron acceptor in aerobic respiration is Select one: a. glucose. b. carbon dioxide. c. water. d. oxygen.arrow_forward
- What fundamental difference sets apart anaerobic respiration from aerobic respiration? a. Anaerobic respiration does not have Krebs Cycle. b. Anaerobic respiration does not have an electron transport chain. c. Anaerobic respiration involves substrate-level phosphorylation only. d. Anaerobic respiration utilizes electronegative compounds such as nitrates as final electron acceptor.arrow_forwardWhich of the following statements is MOST ACCURATE? A. The oxidation of NADH in the mitochondrial matrix results in the transfer of 1 electron to the electron transport chain. B. The reduction of NADH in the mitochondrial matrix results in the transfer of 1 electron to the electron transport chain. C. The reduction of NADH in the mitochondrial matrix results in the transfer of 2 electrons to the electron transport chain. D. The oxidation of NADH in the cytoplasm results in the transfer of 1 electron to the electron transport chain. E. The oxidation of NADH in the mitochondrial matrix results in the transfer of 2 electrons to the electron transport chain.arrow_forwardPut the following pathways in the order they occurduring aerobic respiration.a. electron transfer phosphorylationb. acetyl–CoA formationc. citric acid cycled. glycolysisarrow_forward
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