Brock Biology of Microorganisms (14th Edition)
14th Edition
ISBN: 9780321897398
Author: Michael T. Madigan, John M. Martinko, Kelly S. Bender, Daniel H. Buckley, David A. Stahl, Thomas Brock
Publisher: PEARSON
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Chapter 14, Problem 13RQ
Summary Introduction
The nitrogen present in the atmosphere is the vital source of proteins and
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Azotobacter vinelandii is being studied for the production of alginate from sucrose. In a continuous culture at 28°C with ammonia as a nitrogen source, the alginate yield obtained was 4 g/g of oxygen consumed. It is desired to produce alginate at a rate of 5 kg/h. As the viscosity of alginate in water is considerable, the energy related to stirring the broth cannot be neglected, and the fermenter is equipped with a Rushton-type turbine. For satisfactory agitation and aeration speed, the estimated energy requirement is 1.5 kW. Calculate the cooling requirement.
Which crucial step in the oxidation of copper oresis carried out by Acidithiobacillus ferrooxidans?
Switchgrass is used for ethanol production. The composition of the switchgrass is 37% cellulose, 24%
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method is applied to the switchgrass before enzymatic hydrolysis and fermentation. The
pretreatment hydrolyzes 10% hexosan and 90% pentosan into monomeric sugars. Approximately
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Chapter 14 Solutions
Brock Biology of Microorganisms (14th Edition)
Ch. 14.1 - Why is it necessary to consider microbial...Ch. 14.1 - What are three reasons that functional traits...Ch. 14.2 - What form of photosynthesis was most likely the...Ch. 14.3 - What are the differentiating properties of the...Ch. 14.3 - Prob. 2MQCh. 14.4 - What is the source of the purple color from which...Ch. 14.4 - Prob. 2MQCh. 14.5 - What are some similarities between purple...Ch. 14.5 - Prob. 2MQCh. 14.6 - Prob. 1MQ
Ch. 14.6 - Prob. 2MQCh. 14.7 - Prob. 1MQCh. 14.7 - Prob. 2MQCh. 14.8 - What types of anoxygenic phototrophs contain...Ch. 14.8 - Prob. 2MQCh. 14.9 - What are the typical electron donors used by...Ch. 14.9 - What bacterial phyla are known to contain...Ch. 14.10 - What are the typical electron donors used by...Ch. 14.10 - Prob. 2MQCh. 14.11 - Describe the energy and carbon metabolism of...Ch. 14.11 - What are some ecological strategies that sulfur...Ch. 14.12 - What mechanisms do free-living diazotraphs use to...Ch. 14.12 - Prob. 2MQCh. 14.13 - Under what conditions would you expect...Ch. 14.13 - Prob. 2MQCh. 14.14 - In what phylogenetic groups are Geobacter and...Ch. 14.14 - Prob. 2MQCh. 14.15 - What habitat characteristics govern the diversity...Ch. 14.15 - How do aerobic neutrophilic iron-oxidizers keep...Ch. 14.16 - Prob. 1MQCh. 14.16 - Prob. 2MQCh. 14.17 - What is the difference between a methanotroph and...Ch. 14.17 - What is unique about the methanotroph...Ch. 14.18 - Prob. 1MQCh. 14.18 - Prob. 2MQCh. 14.19 - Prob. 1MQCh. 14.19 - What are the different ways in which species of...Ch. 14.20 - What are the major differences between spirochetes...Ch. 14.20 - Name two diseases of humans caused by spirochetes.Ch. 14.21 - Prob. 1MQCh. 14.21 - Prob. 2MQCh. 14.22 - Describe how a sheathed bacterium such as...Ch. 14.22 - List two metals that are oxidized by sheathed...Ch. 14.23 - What benefit do magnetic bacteria accrue from...Ch. 14.23 - Would you expect to find greigite or magnetite in...Ch. 14.24 - Prob. 1MQCh. 14.24 - Prob. 2MQCh. 14 - What is convergent evolution and how is it...Ch. 14 - Which bacterial phyla contain phototrophs?Ch. 14 - How are prochlorophytes, such as Prochlorococcus,...Ch. 14 - Compare and contrast the metabolism, morphology,...Ch. 14 - Compare and contrast the metabolism of purple...Ch. 14 - REVIEW QUESTIONS
6. In what group of organisms...Ch. 14 - Prob. 7RQCh. 14 - In what ways is Chloracidobacterium thermophilum...Ch. 14 - Prob. 9RQCh. 14 - In what ways are sulfur-reducing bacteria...Ch. 14 - Prob. 11RQCh. 14 - What are some ways that diazotrophs protect...Ch. 14 - Prob. 13RQCh. 14 - Prob. 14RQCh. 14 - Prob. 15RQCh. 14 - Prob. 16RQCh. 14 - Prob. 17RQCh. 14 - What are the differences between type I and type...Ch. 14 - Prob. 19RQCh. 14 - Compare and contrast the life cycle of Myxococcus...Ch. 14 - Contrast the motility of spirochetes with that of...Ch. 14 - Contrast the life cycle of Hyphomicrobium with...Ch. 14 - Prob. 23RQCh. 14 - In what way does a magnetosome contribute to the...Ch. 14 - Prob. 25RQCh. 14 - Describe a key physiological feature of the...Ch. 14 - APPLICATION QUESTIONS
2. Describe the metabolism...
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