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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Textbook Question
Chapter 20.4, Problem 1MQ
Is H2S a substrate or a product of the sulfate-reducing bacteria? Of the chemolithotrophic sulfur bacteria?
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Chapter 20 Solutions
Brock Biology of Microorganisms (14th Edition)
Ch. 20.1 - How is new organic matter made in nature?Ch. 20.1 - In what ways are oxygenic photosynthesis and...Ch. 20.1 - What is a methane hydrate?Ch. 20.2 - Why does Syntrophomonas need a partner organism in...Ch. 20.2 - Prob. 2MQCh. 20.2 - What is the final product of acetogenesis?Ch. 20.3 - What is nitrogen fixation and why is it important...Ch. 20.3 - Prob. 2MQCh. 20.3 - How does the compound nitrapyrin benefit both...Ch. 20.4 - Is H2S a substrate or a product of the...
Ch. 20.4 - Prob. 2MQCh. 20.4 - Prob. 3MQCh. 20.5 - In what oxidation state is Fe in Fe(OH)3? In FeS?...Ch. 20.5 - Prob. 2MQCh. 20.5 - Why is excreted organic matter important to many...Ch. 20.6 - How does the formation of CaCO3 skeletons by...Ch. 20.6 - Prob. 2MQCh. 20.7 - What forms of mercury are most toxic to organisms?Ch. 20.7 - Prob. 2MQCh. 20.8 - What is the greenhouse effect and what causes it?Ch. 20.8 - What is the fate of most nitrogen used in...Ch. 20.8 - Why are the OMZs expanding and what are the likely...Ch. 20 - Prob. 1RQCh. 20 - Prob. 2RQCh. 20 - The principal form of nitrogen on Earth is N2,...Ch. 20 - Prob. 4RQCh. 20 - Prob. 5RQCh. 20 - Prob. 6RQCh. 20 - Prob. 7RQCh. 20 - Prob. 8RQCh. 20 - Compare and contrast the carbon, sulfur, and...Ch. 20 - 14C-labeled cellulose is added to a vial...Ch. 20 - Prob. 3AQ
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- How would you isolate thermophilic chemolithotroph thatuses sulfur compounds as a source of energy and electron?What changes in the incubation system will be required toisolate a bacteria using sulphur in an anaerobic system?arrow_forwardWhat is the role of sulfur in the metabolism of sulfur-oxidizing bacteria?arrow_forwardWhy are most iron-oxidizing chemolithotrophsobligate aerobes, and why are the better-studied ironoxidizers acidophilic?arrow_forward
- What are the equations for chemoautotrophic process and carbon sequestering? What is a CHP sytem?arrow_forwardWhy is it possible for bacteria tosurvive on acetic acid as a sole carbon source, but not humanbeings?arrow_forwardWhat is meant by the term “chemolithotrophy”? In what wayare chemolithotrophs like plants?arrow_forward
- How to isolate a thermophilic chemolithotroph that uses sulphur compounds as a source of energy and electrons, how would you achieve this?arrow_forwardHow does an aerotolerant anaerobe differ from a microaerophile?arrow_forwardName two enzymes that are present in obligate aerobes but lacking in obligate anaerobes. What is the function of each enzyme?arrow_forward
- What enzyme is required for hydrogen bacteria to grow asH2 chemolithotrophs?arrow_forwardHow do denitrifying and sulfate-reducing bacteriadegrade hydrocarbons anaerobically and withoutoxygenases?arrow_forwardWith respect to sulfate-reducing bacteria and acetateas substrate, which genera contain “incomplete oxidizers”and which genera contain “complete oxidizers”?arrow_forward
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