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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Chapter 13, Problem 11RQ
Summary Introduction
Anammox is a biological process, in which the ammonium and nitrite ions are directly converted into diatomic nitrogen and water. In an anammox process ammonia is act as an electron donor, whereas nitrite is act as an electron acceptor. Worldwide, this process might be responsible for generating about 30 to 50% of the nitrogen gas in the ocean. The anammox bacteria belong to the phylum Planctomycetes.
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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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- Write the complete redox reactions for the following microbial metabolisms. Give an example of a type of environment where such bacteria may thrive (will there be plentiful O2? Organics-rich sediment? mineral-bearing rock formations etc?) Â Oxidation of glucose (C6H12O6) by sulfate (H2SO4) reducers (redox products are CO2 and H2S). Â Oxidation of ferrous hydroxide (Fe(OH)2) by iron-oxidizing bacteria in oxygen (O2)-rich environment. Redox products are Fe(OH)3 and H2 Â Please write all redox reactions correctly and explain! Thanks!arrow_forwardDefine obligate aerobe, facultative anaerobe and obligate anaerobe. Describe the enzymes and their functions for oxygen detoxification?arrow_forwardIdentify, by metabolic type, microorganisms responsible for dissimilatory nitrate, sulfate, and iron reduction; nitrification; and sulfur and iron oxidationarrow_forward
- Compare and contrast the characteristics of sulfur-oxidizing bacteria, nitrifiers, and hydrogen-oxidizing bacteria.arrow_forwardExplain the metabolic changes found in denitrifiers, compared to microorganisms doing aerobic respirationarrow_forwardCompare and contrast the growth and physiology of obligate aerobes, facultative anaerobes, microaerophiles, and strict anaerobesarrow_forward
- Explain how Methanobrevibacter smithii, obtains energy and generates ATP; include reducing agent(s)and end products.arrow_forwardSelect only the exclusive aerobic 4microbial pathways ahead: -Nitrate assimilation O Nitrification -Disproportionation of thiosulfate -Denitrification -Ammonium asimilation -Ammonification -Respiration -Dissimilatory sulfate reduction -Metanogenesis -Methanotrophy -ANAMOX -Assimilatory sulfate reduction -Methylotrphy -Chemolithotrophic CO2 reduction -Photossyntesis -Desulfurylation -Dissimilatory Nitrate Reduction to Ammonium -Atmospheric Nitrogen fixation -Sulfide oxidation by colorless bacteriaarrow_forwardTrace the fate of the N atom during dissimilatory nitrate reduction, nitrification, denitrification, and the anammox reaction, and indicate whether each must occur in an oxic or anoxic environmentarrow_forward
- explain why there is little to no growth of these organisms in the minimal salt media with glucose compared to the complex media. (HINT: these organisms are chemoheterotrophs and need an organic source of broth carbon and energy)...arrow_forwardSelect the pathways ahead that are exclusively performed by bacteria: -Disproportionation of thiosulfate -Metanogenesis -Photossyntesis -Desulfurylation -Methanotrophy -Ammonification -Nitrification -Denitrification -Methylotrphy -Assimilatory sulfate reduction -Dissimilatory sulfate reduction -Ammonium asimilation -Cemolithotrophic CO2 reduction -ANAMOX -Respiration -Nitrate assimilation -Dissimilatory Nitrate Reduction to Ammonium -Atmospheric Nitrogen fixation -Elemental sulfur aerobic oxidationarrow_forwardDetermine the following about Corynebacteria diphtheria..... Determine the microbes possible mechanism(s) of cellular respiration. Do they perform aerobic respiration or anaerobic respiration? Are they capable of performing fermentation?arrow_forward
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