Prescott's Microbiology
11th Edition
ISBN: 9781260211887
Author: WILLEY, Sandman, Wood
Publisher: McGraw Hill
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Chapter 28.1, Problem 3.5CC
Suggest how a chemolithoautotroph might link the carbon and sulfur cycles.
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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)...
Describe the roles of hydrogen sulfide and carbon dioxide in chemolithoautotrophic metabolism.
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?)
Oxidation of glucose (C6H12O6) by sulfate (H2SO4) reducers (redox products are CO2 and H2S).
Oxidation of ferrous hydroxide (Fe(OH)2) by iron-oxidizing bacteria in oxygen (O2)-rich environment. Redox products are Fe(OH)3 and H2
Please write all redox reactions correctly and explain! Thanks!
Chapter 28 Solutions
Prescott's Microbiology
Ch. 28.1 - Prob. 1MICh. 28.1 - What microbes are capable of methanogenesis and...Ch. 28.1 - Prob. 1.1CCCh. 28.1 - Prob. 1.2CCCh. 28.1 - Prob. 1.3CCCh. 28.1 - Prob. 1.4CCCh. 28.1 - Prob. 1.5CCCh. 28.1 - What are the products of denitrification,...Ch. 28.1 - Prob. 2.1CCCh. 28.1 - Prob. 2.2CC
Ch. 28.1 - Prob. 2.3CCCh. 28.1 - Prob. 2.4CCCh. 28.1 - Prob. 4MICh. 28.1 - Prob. 5MICh. 28.1 - Compare the products of dissimilatory sulfate...Ch. 28.1 - Prob. 3.2CCCh. 28.1 - Prob. 3.3CCCh. 28.1 - Prob. 3.4CCCh. 28.1 - Suggest how a chemolithoautotroph might link the...Ch. 28.2 - What organisms benefit from nitrification?Ch. 28.2 - List three greenhouse gases. Discuss their...Ch. 28.2 - Prob. 2CCCh. 28.2 - How do changes in the nitrogen cycle caused by...Ch. 28.2 - Prob. 4CCCh. 28 - Prob. 1RCCh. 28 - Prob. 2RCCh. 28 - Prob. 3RCCh. 28 - Prob. 5RCCh. 28 - Prob. 6RCCh. 28 - Prob. 7RCCh. 28 - Prob. 8RCCh. 28 - Prob. 1ALCh. 28 - A bacterium isolated from sewage sludge was...Ch. 28 - Prob. 3ALCh. 28 - Prob. 4AL
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- Identify, by metabolic type, the microorganisms responsible for carbon and nitrogen fixation, and the mineralization of organic carbon and nitrogen under oxic and anoxic conditionsarrow_forwardExplain the metabolic changes found in denitrifiers, compared to microorganisms doing aerobic respirationarrow_forwardOutline the steps involved in the two paths of sulfate assimilation. Be sure to address the sulfur reduction pathway as a photoassimilation process.arrow_forward
- Relate the reduction-oxidation reaction/s to bioremediation and food microbiology. Explain the mechanism on how microorganisms obtain energy from pollutants or toxic chemicals.arrow_forwardAn organism is discovered living near hydrothermal vents deep in the ocean where sunlight cannot reach. It is found to gain energy through the oxidation of inorganic sulfur compounds present in its environment and uses this energy to turn CO2 into complex organic compounds. Based on this information, how would this organism be best categorized metabolically? Chemoautotroph Chemoheterotroph Photoautotroph Photoheterotropharrow_forwardChemolithotrophs meet their energy needs by oxidizing organic food molecules. True False Which of the following events does not occur during the energy-investment phase of glycolysis? Hexokinase catalyzes the transfer of a phosphate group from ATP to glucose to form glucose-6-phosphate. Phosphofructokinase catalyzes the isomerization of glucose-6-phosphate to fructose-6-phosphate. Fructose-bisphosphate aldolase cleaves Fructose-1,6-bisphosphate into two different three-carbon sugars. Dihydroxyacetone phosphate can be converted to glyceraldehyde-3-phosphate with the help of the enzyme triose phosphate isomerase.arrow_forward
- Microbes degrade many different kinds of macromolecules to capture carbon. Describe at least three ways in which microbes obtain carbon from large macromolecules and how the metabolic intermediates enter the central pathways of catabolism.arrow_forwardIron bacteria, sulfur-oxidizing bacteria, and nitrifying bacteria, which all oxidize inorganic compounds through a series of chemical reactions, are best described as O 1) photoheterotrophs 2) chemoheterotrophs O 3) chemolithotrophs. O 4) photoautotrophs 5) chemoautotrophs.arrow_forwardDefine nitrogen fixation. What organisms are capable of nitrogen fixation?arrow_forward
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Nutrient Cycling | Soil Food Web School; Author: Dr Elaine's Soil Food Web School;https://www.youtube.com/watch?v=NVhY4ssMtbI;License: Standard youtube license