Prescott's Microbiology
10th Edition
ISBN: 9781259281594
Author: Joanne Willey, Linda Sherwood Adjunt Professor Lecturer, Christopher J. Woolverton Professor
Publisher: McGraw-Hill Education
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Chapter 11.10, Problem 5RIA
Arsenate is a compound that inhibits substrate-level phosphorylation. Compare the effect of this compound on an H2-oxidizing chemolithotroph, on a sulfite-oxidizing chemolithotroph, and on a chemoorganotroph carrying out fermentation.
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Imagine you are trying to use an organism to remove organic matter in a wastewater treatment plant (i.e., poop). You would like to maximize the amount of waste consumed while also minimizing the amount of cells produced.
Assuming these organisms exist and all other things are equal, what combination of chemoorganotrophic organism and environment would make the most sense to use?
An organism that only has the Entner-Duoduroff pathway under anaerobic conditions.
This was a trick question – the organism would have to be a chemolithotroph since it is consuming a chemical.
An organism that only has the Entner-Duoduroff pathway under aerobic conditions.
An organism that only has the Embden Meyer Parnas pathway under anaerobic conditions.
An organism that only has the Embden Meyer Parnas pathway under anaerobic conditions.
Anaerobic production of ethanol by Saccharomyces cerevisiae is associated with yeast growth. The steady-state growth kinetics of yeast follows Monod. It is intended to produce 10 kg/h of ethanol in an ideal CSRT-type fermenter, fed by a solution of 50 g/L of glucose. Size the fermenter for this purpose (calculate its working volume), setting the biomass concentration at the exit of the fermenter at 6.9 g/L.Note: CSTR = Continuous Stirred Tank ReactorData: μmax = 0.1 h-1; Ks = 0.5 g/L; YX/S = 0.15; YP/S = 0.45.(answer: V = 5435 L)
Anaerobic production of ethanol by Saccharomyces cerevisiae is associated with yeast growth. The steady-state growth kinetics of yeast follows Monod. It is intended to produce 10 kg/h of ethanol in an ideal CSRT-type fermenter, fed by a solution of 50 g/L of glucose. Size the fermenter for this purpose (calculate its working volume), setting the biomass concentration at the exit of the fermenter at 6.9 g/L.
Chapter 11 Solutions
Prescott's Microbiology
Ch. 11.1 - Retrieve, Infer, Apply Discuss the ways in which...Ch. 11.1 - Describe the nutritional requirements of the major...Ch. 11.1 - Retrieve, Infer, Apply Compare...Ch. 11.1 - Retrieve, Infer, Apply What are the three major...Ch. 11.2 - Is NAD+ reduced to NADH in the catabolic or...Ch. 11.2 - Prob. 1RIACh. 11.2 - Why is it to a cells advantage to catabolize...Ch. 11.2 - Prob. 3RIACh. 11.4 - Which reactions are examples of substrate-level...Ch. 11.4 - For what kinds of reactions is NADPH used?
Ch. 11.4 - For what macromolecule is ribose 5-phosphate a...Ch. 11.4 - Summarize the major features of the...Ch. 11.4 - Prob. 2RIACh. 11.5 - Identify the substrate and products of the TCA...Ch. 11.5 - What chemical intermediate links pyruvate to the...Ch. 11.5 - Prob. 3RIACh. 11.5 - Retrieve, Infer, Apply In what eukaryotic...Ch. 11.5 - Why is it desirable for a microbe with the...Ch. 11.6 - Prob. 1MICh. 11.6 - Prob. 2MICh. 11.6 - Prob. 1RIACh. 11.6 - Describe the current model of oxidative...Ch. 11.6 - Prob. 3RIACh. 11.6 - Prob. 4RIACh. 11.7 - Prob. 1RIACh. 11.7 - Prob. 2RIACh. 11.7 - Prob. 3RIACh. 11.8 - Prob. 1MICh. 11.8 - Prob. 1RIACh. 11.8 - Prob. 2RIACh. 11.8 - Briefly describe alcoholic, lactic acid, mixed...Ch. 11.8 - Prob. 4RIACh. 11.8 - Prob. 5RIACh. 11.9 - What is the difference between a hydrolase and...Ch. 11.9 - Prob. 2MICh. 11.9 - Retrieve, Infer, Apply Briefly discuss the ways in...Ch. 11.9 - Prob. 2RIACh. 11.9 - Retrieve, Infer, Apply Describe how a...Ch. 11.10 - How do chemolithotrophs obtain their ATP and...Ch. 11.10 - Prob. 2RIACh. 11.10 - Why can hydrogen-oxidizing bacteria and archaea...Ch. 11.10 - What is reverse electron flow and why do many...Ch. 11.10 - Arsenate is a compound that inhibits...Ch. 11.11 - When electrons from P700 are used to reduce NADP+,...Ch. 11.11 - Define the following terms: light reactions, dark...Ch. 11.11 - Prob. 2RIACh. 11.11 - What is the function of accessory pigments?Ch. 11.11 - Prob. 4RIACh. 11.11 - Compare and contrast anoxygenic phototrophy and...Ch. 11.11 - Prob. 6RIACh. 11 - Without looking in chapters 21 and 22, predict...Ch. 11 - From an evolutionary perspective, discuss why most...Ch. 11 - How would you isolate a thermophilic...Ch. 11 - Certain chemicals block ATP synthesis by allowing...Ch. 11 - Prob. 5CHICh. 11 - A cyanobacterium having photosystem I but not...Ch. 11 - Review the description of the Berkeley Pit Lake in...Ch. 11 - The archaeon Metallosphaera sedula is of great...Ch. 11 - Nitrite-oxidizing bacteria have been thought to be...
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