Brock Biology of Microorganisms, Books a la Carte Edition (14th Edition)
14th Edition
ISBN: 9780321928351
Author: MADIGAN, Michael T., Martinko, John M., Brock, Thomas, Bender, Kelly S., BUCKLEY, Daniel H., Stahl, David A.
Publisher: PEARSON
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Textbook Question
Chapter 13, Problem 4AQ
A fatty acid such as butyrate cannot be fermented in pure culture, although its anaerobic catabolism under other conditions occurs readily. How do these conditions differ, and why does the latter allow for butyrate catabolism? How then can butyrate be fermented in mixed culture?
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Chapter 13 Solutions
Brock Biology of Microorganisms, Books a la Carte Edition (14th Edition)
Ch. 13.1 - What is the fundamental difference between an...Ch. 13.1 - Prob. 2MQCh. 13.1 - Why can phototrophic green bacteria grow at light...Ch. 13.2 - In which phototrophs are carotenoids found?...Ch. 13.2 - How does the structure of a phycobilin compare...Ch. 13.2 - Phycocyanin is blue-green. What color of light...Ch. 13.3 - What parallels exist in the processes of...Ch. 13.3 - What is reverse electron flow and why is it...Ch. 13.3 - Prob. 3MQCh. 13.4 - Differentiate between cyclic and noncyclic...
Ch. 13.4 - What is the key role of light energy in the...Ch. 13.4 - What evidence is there that anoxygenic and...Ch. 13.5 - Prob. 1MQCh. 13.5 - How much NADPH and ATP is required to make one...Ch. 13.5 - Contrast autotrophy in the following phototrophs:...Ch. 13.6 - Prob. 1MQCh. 13.6 - Prob. 2MQCh. 13.7 - What enzyme is required for hydrogen bacteria to...Ch. 13.7 - Why is reverse electron flow unnecessary in H2...Ch. 13.8 - Prob. 1MQCh. 13.8 - In terms of intermediates, how does the Sox system...Ch. 13.9 - Prob. 1MQCh. 13.9 - What is the function of rusticyanin and where is...Ch. 13.9 - How can Fe2+ be oxidized under anoxic conditions?Ch. 13.10 - Prob. 1MQCh. 13.10 - Prob. 2MQCh. 13.10 - Prob. 3MQCh. 13.11 - Prob. 1MQCh. 13.11 - Why is acetate formation in fermentation...Ch. 13.12 - How can homo- and heterofermentative metabolism be...Ch. 13.12 - Butanediol production leads to greater ethanol...Ch. 13.13 - Compare the mechanisms for energy conservation in...Ch. 13.13 - What type of substrates are fermented by...Ch. 13.13 - What are the substrates for the Clostridium...Ch. 13.14 - Why does Propionigenium modestum require sodium...Ch. 13.14 - Of what benefit is the organism Oxalobacter to...Ch. 13.14 - Prob. 3MQCh. 13.15 - Give an example of interspecies H2 transfer. Why...Ch. 13.15 - Why can a pure culture of Syntrophomonas grow on...Ch. 13.16 - How does aerobic respiration differ from anaerobic...Ch. 13.16 - Prob. 2MQCh. 13.17 - For Escherichia coli, why is more energy released...Ch. 13.17 - How do the products of NO3 reduction differ...Ch. 13.17 - Where is the dissimilative nitrate reductase found...Ch. 13.18 - How is SO42 converted to SO32 during dissimilative...Ch. 13.18 - Contrast the growth of Desulfovibrio on H2 versus...Ch. 13.18 - Give an example of sulfur disproportionation.Ch. 13.19 - Prob. 1MQCh. 13.19 - Prob. 2MQCh. 13.19 - Prob. 3MQCh. 13.20 - Which coenzymes function as C1 carriers in...Ch. 13.20 - In methanogens growing on H2 + CO2, how is carbon...Ch. 13.20 - How is ATP made in methanogenesis when the...Ch. 13.21 - Prob. 1MQCh. 13.21 - What is reductive dechlorination and why is it...Ch. 13.21 - How does anaerobic glucose catabolism differ in...Ch. 13.22 - How do monooxygenases differ in function from...Ch. 13.22 - What is the final product of catabolism of a...Ch. 13.22 - Prob. 3MQCh. 13.23 - When using CH4 as electron donor, why is...Ch. 13.23 - Prob. 2MQCh. 13.23 - In which two ways does the ribulose monophosphate...Ch. 13.24 - Prob. 1MQCh. 13.24 - How is hexane oxygenated during anoxic catabolism?Ch. 13.24 - Prob. 3MQCh. 13 - Prob. 1RQCh. 13 - Prob. 2RQCh. 13 - What accessory pigments are present in...Ch. 13 - Prob. 4RQCh. 13 - Prob. 5RQCh. 13 - Prob. 6RQCh. 13 - REVIEW QUESTIONS
7. What two enzymes are unique to...Ch. 13 - Prob. 8RQCh. 13 - Prob. 9RQCh. 13 - QWhich inorganic electron donors are used by the...Ch. 13 - Prob. 11RQCh. 13 - Define the term substrate-level phosphorylation:...Ch. 13 - Prob. 13RQCh. 13 - Prob. 14RQCh. 13 - Prob. 15RQCh. 13 - Prob. 16RQCh. 13 - Prob. 17RQCh. 13 - Prob. 18RQCh. 13 - Compare and contrast acetogens with methanogens in...Ch. 13 - Compare and contrast ferric iron reduction with...Ch. 13 - How do monooxygenases differ from dioxygenases in...Ch. 13 - Prob. 22RQCh. 13 - Prob. 23RQCh. 13 - Prob. 1AQCh. 13 - The growth rate of the phototrophic purple...Ch. 13 - Prob. 3AQCh. 13 - A fatty acid such as butyrate cannot be fermented...Ch. 13 - When methane is made from CO2 (plus H2) or from...
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