Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
8th Edition
ISBN: 9780134015187
Author: John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson
Publisher: PEARSON
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Chapter 21, Problem 21.66AP
Interpretation Introduction
Interpretation:
The given set of species should be arranged in the correct order of their action in electron transport chain.
Concept Introduction:
Electron transport chain
The enzymes that help in electron transport chain are embedded within the inner membrane of mitochondrion.
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The following statements describe the path of electrons from NADH through the electron transport chain. Please arrange them in order:
Cytochrome c (Fe2+) carries electrons to Complex IV.
Cytochrome c (Fe3+) is reduced to cytochrome c (Fe2+)
QH2 carries electrons to Complex III
Oxygen is reduced to water
Ubiquinone (coenzyme Q) is reduced to ubiquinol (QH2)
The coenzymes NAD+ and NADP+ are important electron carriers that pick up electrons from one pathway and deliver them to another. Below is a list of pathways or enzyme complexes that we have covered in class. Indicate which coenzyme these pathways or complexes produce by writing NAD+, NADP+, NADH or NADPH in the blank provided.
________ glycolysis
________ citric acid cycle
________ alcoholic fermentation
________ pyruvate dehydrogenase complex
________ gluconeogenesis
________ mitochondrial electron transport
________ photosynthesis light reactions
________ photosynthesis dark reactions
Cyanide poisoning inhibits aerobic respiration at cytochrome c oxidase. Which of the following is NOT a result of
cyanide poisoning at the cellular level?
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b
с
d
e
Oxygen is reduced to water
The rate of glycolysis increases
Cells are forced to switch to anaerobic respiration
The electron transport chain is not completed
None of the above
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Chapter 21 Solutions
Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
Ch. 21.1 - In a cell, glucose can be oxidized via metabolic...Ch. 21.1 - Prob. 21.2KCPCh. 21.1 - Prob. 21.1CIAPCh. 21.1 - Prob. 21.2CIAPCh. 21.1 - Prob. 21.3CIAPCh. 21.1 - Prob. 21.4CIAPCh. 21.3 - Prob. 21.3PCh. 21.4 - Prob. 21.4PCh. 21.4 - Prob. 21.5PCh. 21.4 - Prob. 21.5CIAP
Ch. 21.4 - How does a cell disarm each of the ROS in CIA...Ch. 21.5 - One of the steps in lipid metabolism is the...Ch. 21.5 - Prob. 21.7PCh. 21.5 - Prob. 21.7CIAPCh. 21.5 - Prob. 21.8CIAPCh. 21.5 - Prob. 21.9CIAPCh. 21.5 - Prob. 21.10CIAPCh. 21.5 - Prob. 21.8PCh. 21.6 - Prob. 21.9PCh. 21.6 - Prob. 21.10PCh. 21.7 - Prob. 21.11PCh. 21.7 - Prob. 21.13PCh. 21.7 - Identify the participants in the citric acid cycle...Ch. 21.7 - Prob. 21.15PCh. 21.7 - Prob. 21.16KCPCh. 21.8 - Within the mitochondrion, is the pH higher in the...Ch. 21.8 - Prob. 21.18PCh. 21.8 - Prob. 21.19KCPCh. 21.8 - Prob. 21.11CIAPCh. 21.8 - Prob. 21.12CIAPCh. 21.8 - Prob. 21.13CIAPCh. 21 - Prob. 21.20UKCCh. 21 - Each of these reactions is involved in one of the...Ch. 21 - Prob. 21.22UKCCh. 21 - Prob. 21.23UKCCh. 21 - The reaction that follows is catalyzed by...Ch. 21 - Prob. 21.25UKCCh. 21 - The electron-transport chain uses several...Ch. 21 - Prob. 21.27APCh. 21 - What is the difference between an endergonic...Ch. 21 - Prob. 21.29APCh. 21 - Prob. 21.30APCh. 21 - Prob. 21.31APCh. 21 - Prob. 21.32APCh. 21 - Which of the following organisms are prokaryotes,...Ch. 21 - Label each of the following as a characteristic of...Ch. 21 - Prob. 21.35APCh. 21 - Prob. 21.36APCh. 21 - Describe in general terms the structural makeup of...Ch. 21 - Prob. 21.38APCh. 21 - Prob. 21.39APCh. 21 - Prob. 21.40APCh. 21 - Prob. 21.41APCh. 21 - Prob. 21.42APCh. 21 - Prob. 21.43APCh. 21 - Prob. 21.44APCh. 21 - What does it mean when we say that two reactions...Ch. 21 - Prob. 21.46APCh. 21 - Prob. 21.47APCh. 21 - Prob. 21.48APCh. 21 - Prob. 21.49APCh. 21 - Prob. 21.50APCh. 21 - Prob. 21.51APCh. 21 - Prob. 21.52APCh. 21 - Prob. 21.53APCh. 21 - Prob. 21.54APCh. 21 - Prob. 21.55APCh. 21 - Prob. 21.56APCh. 21 - Prob. 21.57APCh. 21 - Prob. 21.58APCh. 21 - Prob. 21.59APCh. 21 - Prob. 21.60APCh. 21 - Prob. 21.61APCh. 21 - Prob. 21.62APCh. 21 - Prob. 21.63APCh. 21 - Prob. 21.64APCh. 21 - Prob. 21.65APCh. 21 - Prob. 21.66APCh. 21 - Prob. 21.67APCh. 21 - Prob. 21.68APCh. 21 - What does the term oxidative phosphorylation mean?...Ch. 21 - Prob. 21.70APCh. 21 - Prob. 21.71APCh. 21 - Prob. 21.72APCh. 21 - Prob. 21.73APCh. 21 - Prob. 21.74APCh. 21 - Prob. 21.75APCh. 21 - Prob. 21.76APCh. 21 - Prob. 21.77CPCh. 21 - Fumarate produced in step 6 of the citric acid...Ch. 21 - With what class of enzymes are the coenzymes NAD+...Ch. 21 - Prob. 21.80CPCh. 21 - Prob. 21.81CPCh. 21 - Prob. 21.82CPCh. 21 - The mitochondrion pumps H+ from the matrix into...Ch. 21 - Prob. 21.84CPCh. 21 - Prob. 21.85CPCh. 21 - Prob. 21.86CPCh. 21 - Prob. 21.87GPCh. 21 - Prob. 21.88GPCh. 21 - Prob. 21.89GP
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- Much of our understanding of ATP synthase is derived from research on aerobic bacteria. What makes these organisms useful for this research? Where do the reactions of glycolysis, the citric acid cycle, and the electron-transport chain occur in these organisms?arrow_forwardA poison that prevents the transfer of electrons from the last [Fe-S] cluster of Complex I to coenzyme Q is added to a suspension of actively respiring mitochondria. Which of the following will be observed? ATP production would be impaired due to the uncoupling of oxidative phosphorylation from electron transport. ATP production would be reduced due to inhibition of the CoQ subunit of ATP synthase. ATP production would be reduced due to a decrease in the number of protons pumped out of the mitochondrial matrix. ATP production would be halted completely due to the block in electron transport through the electron transport chain.arrow_forwardIn the presence of excess oxygen, a complete oxidation of seven molecules of glucose into carbon dioxide and water, by a yeast cell, would produce approximately ATP molecules via oxidative phosphorylation only. (Consider NADH = 3 ATP and FADH2 = 2 ATP)arrow_forward
- match the cofactor with its function in the citric acid cycle by entering the number corresponding with the function. A given function may be used more than one time or not at all. Use from the following list of functions to fill in the table below: carries O2 carries small carbon-containing molecules carries e- carries small nitrogen-containing molecules Cofactor Function NAD+/NADH FAD/FADH2 CoA thiamine biotinarrow_forwardA proton gradient is created during the electron transport chain using the energy released from the oxidation of NADH and FADH2. The protons then cross the membrane through ATP synthase down their electrochemical gradient, and ATP is produced. This is an example of A) energy coupling B) cotransport C) allosteric regulation.arrow_forwardIndicate whether the following statements are true or false:- a) The pentose phosphate pathway of glucose oxidation can lead to the release of energy. b) NAD + is a coenzyme of transketolase.arrow_forward
- Arrange the following events in the order in which they occur in a catabolic process: electron transport, digestion, oxidative phosphorylation, citric acid cycle.arrow_forwardA suspension of inside-out submitochondrial particles (i.e., the F1 unit is on the outside of the particle) is placed in a solution that contains ADP, Pi, and NADH. Will increasing the proton concentration of the solution result in ATP synthesis? Explain.arrow_forwardList the reactions of electron transport that liberate enough energy to drive the phosphorylation of ADP.arrow_forward
- In one of the steps of glycolysis, the enzyme pyruvate kinase catalyzes the conversion of phosphoenolpyruvate to pyruvate; the phosphate group from phosphoenolpyruvate is transferred to ADP to form ATP during the reaction. This process is an example of: A) O ATP synthesis by substrate-level phosphorylation B) O coupling an energy releasing process to an energy requiring process C) O oxidative phosphorylation D) OB and C are correct E) OA and B are correctarrow_forwardSelect the correct answer : Which of the following statements best describes the chemiosmotic theory of ATP synthesis by the electron transport system? A) As the protons pass through the system, electrons are moved from the mitochondrial matrix to the intermembrane space and ATP is formed as the electrons move back to the matrix through only one phosphorylation site. B) As the electrons pass through the system, ATP is synthesized at three different phosphorylation sites. C) As the electrons pass through the system, protons are moved from the mitochondrial matrix to the intermembrane space and ATP is formed as the protons ;move back to the matrix through the three different phosphorylation sites. D) As the electrons pass through the system protons are moved from the mitochondrial matrix to the intermembrane space and ATP is formed as the protons move back to the matrix through only one phosphorylation site.arrow_forward*Determine the ATP yield from the metabolism of one molecule of glucose under the following conditions: a) b) c) in a mammalian muscle cell carrying out anaerobic glycolysis. in Escherichia coli, an aerobic prokaryote in a mammalian brown fat cell, in which electron transport occurs without producing ATParrow_forward
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