Prescott's Microbiology
11th Edition
ISBN: 9781260211887
Author: WILLEY, Sandman, Wood
Publisher: McGraw Hill
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Textbook Question
Chapter 10.4, Problem 5CC
Name and briefly describe the major electron carriers found in cells. Why is NADH a good electron donor? Why is ferredoxin an even better electron donor?
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Give an example of a final electron acceptor found in aerobic and anaerobic organisms. Why is aerobic metabolism more efficient than anaerobic metabolism?
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High-energy electrons from molecules of NADH and FADH2 are transferred to a chain of proteins within the electron transport chain. What is the final electron acceptor in the electron transport chain?
Chapter 10 Solutions
Prescott's Microbiology
Ch. 10.1 - Figure 10.2 The Relationship of G to the...Ch. 10.1 - Prob. 1CCCh. 10.1 - Prob. 2CCCh. 10.1 - Prob. 3CCCh. 10.1 - Prob. 4CCCh. 10.2 - Why is ATP called a high-energy molecule? How is...Ch. 10.2 - Describe the energy cycle and ATPs role in it....Ch. 10.3 - Prob. 1MICh. 10.3 - Prob. 2MICh. 10.4 - Figure 10.6 Electron Movement and Reduction...
Ch. 10.4 - How is the direction of electron flow between...Ch. 10.4 - When electrons flow from the NAD+/NADH conjugate...Ch. 10.4 - Which among the following would be the best...Ch. 10.4 - In general terms, how is G related to E0? What is...Ch. 10.4 - Name and briefly describe the major electron...Ch. 10.6 - Will an enzyme with a relatively high Km have a...Ch. 10.6 - Prob. 2MICh. 10.6 - Prob. 1CCCh. 10.6 - Prob. 2CCCh. 10.6 - How does enzyme activity change with substrate...Ch. 10.6 - What special properties might an enzyme isolated...Ch. 10.6 - What are competitive and noncompetitive...Ch. 10.6 - How are enzymes and ribozymes similar? How do they...Ch. 10.7 - Figure 10.19 Allosteric Regulation. The structure...Ch. 10.7 - Prob. 2MICh. 10.7 - Define the terms metabolic channeling and...Ch. 10.7 - Define allosteric enzyme and allosteric effector.Ch. 10.7 - Prob. 3CCCh. 10.7 - Prob. 4CCCh. 10.7 - Prob. 5CCCh. 10 - Prob. 1RCCh. 10 - Prob. 2RCCh. 10 - Prob. 3RCCh. 10 - Examine the structures of macromolecules in...Ch. 10 - Examine the branched pathway shown here for the...Ch. 10 - Prob. 3AL
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- How many ATP are produced when 2moles of NADH enter the electron transport chain?arrow_forwardThe electron transport chain contains four large protein complexes: the NADH-Q reductase complex, succinate dehydrogenase, the cytochrome c reductase complex, and the cytochrome c oxidase complex. What do they have in common?arrow_forwardWhat compounds are the immediate source of the "high energy electrons" that enter the electron transport system of mitochondria? Where do these electron-donating compounds gain their electrons? What type of compounds are these electron-donating compounds?arrow_forward
- To reduce six molecules of carbon dioxide to one molecule of glucose via photosynthesis, how many molecules of NADPH and ATP are required?arrow_forwardExplain how NADH carry electrons by explaining what a hydride is. Which metabolites can potentially accumulate when complex I of the electron transport chain is defective? Do you think NAD therapy will help with hangovers? Explain.arrow_forwardIdentify the final acceptor of the electrons released in the reactions of cellular respiration.arrow_forward
- Along with hydrogen, what else is transferred by NADH to other molecules?arrow_forwardLactic acid fermentation and alcoholic fermentation are oxidation–reduction reactions. Identify the ultimate electron donor and electron acceptor.arrow_forwardin which of the reactions in the electron transport chain, coenzyme Q transfers electrons to complex 3 . Which molecule is reduced and which is oxidized in this reaction?arrow_forward
- In a mixture of NAD+, NADH, ubiquinone, and ubiquinol, which compound will be oxidized? Which will be reduced?arrow_forwardWhat is the oxidative phosphorylation coefficient? indicate the oxidative phosphorylation coefficient of the primary electron donors in krebs cyclearrow_forwardIs there a fundamental difference between the one- and two-electron reactions in the electron transport chain?arrow_forward
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