Microbiology: An Introduction
11th Edition
ISBN: 9780321733603
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: Benjamin Cummings
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Textbook Question
Chapter 27, Problem 5R
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5. Identify where the following processes occur: ammonification, decomposition, denitrification, nitrification, nitrogen fixation. Name at least one organism responsible for each process.
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If you are working at a sewage treatment plant, which microbial process(es) would you use to reduce
nitrates in sewage before releasing into rivers? Why?
denitrification; to reduce occurrence of HAB's
nitrification; to make water richer in fertilizers when used by farmers
nitroge fixiation; to increase dissolved oxygen in river water
nitirification to convert nitrates to unusable nitrites; to increase algal growth in water
"Biodegradation of Diesel Oil Using Bacillus Isolates"
Environmental pollution is now a worldwide burning issue. There are many places in the Philippines,
which are now contaminated by petrochemical sources, such as petroleum refineries and storage sites,
paint manufacturing plants, gasoline service stations, gas emissions, etc. (EMB-DENR, 1997). Although
the basic solution to the pollution problem is the elimination of the sources of these pollutants, there
are however overriding economic, social and political factors that must be considered. An attractive
remedial measure is the use of pesticide-degrading microorganisms for the environmental clean-up.
Bacteria of the genus Bacillus are a group of versatile microbes known to degrade complex organic
matters refractive to most microorganisms. Several species produce enzymes that catalyze the
breakdown of petroleum products in water as well as in oil. These bacteria may provide the means of
eliminating unwanted pollutants in the…
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Chapter 27 Solutions
Microbiology: An Introduction
Ch. 27 - The koala is a leaf-eating animal. What can you...Ch. 27 - Give one possible explanation of why Penicillium...Ch. 27 - In the sulfur cycle, microbes degrade organic...Ch. 27 - Why is the phosphorus cycle important?Ch. 27 - DRAW IT 5. Identify where the following processes...Ch. 27 - Prob. 6RCh. 27 - Outline the treatment process for drinking water.Ch. 27 - Prob. 8RCh. 27 - Bioremediation refers to the use of living...Ch. 27 - NAME IT 10. These nitrogen-fixing prokaryotes...
Ch. 27 - Prob. 1ACh. 27 - Explain the effect of dumping untreated sewage...Ch. 27 - Activated sludge system a. the process takes place...Ch. 27 - Prob. 2MCQCh. 27 - Nitrogen fixation a. the process takes place under...Ch. 27 - Prob. 4MCQCh. 27 - The water used to prepare intravenous solutions in...Ch. 27 - CO2+H2SLightLightC6H12O6+S0 a. aerobic respiration...Ch. 27 - Prob. 7MCQCh. 27 - CO2+8H++8eCH4+2H2O a. aerobic respiration b....Ch. 27 - Prob. 9MCQCh. 27 - Coliforms are used as indicator organisms of...Ch. 27 - Flooding after two weeks of heavy rainfall in...Ch. 27 - The bioremediation process shown in the photograph...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 1. Nitrogen-fixing bacteria reduce ammonia to nitrogen gas. true or falsearrow_forwardplease answer all, surely give thumbs uparrow_forwardIf you are working at a sewage treatment plant, which microbial process would you use to reduce nitrates in sewage before releasing into rivers? Why? O nitirification to convert nitrates to unusable nitrites; to increase algal growth in water O denitrification; to reduce HAB's O nitroge fixiation; to increase dissolved oxygen in river water nitrification; to make water richer in fertilizers when used by farmersarrow_forward
- Significance of psychrotrophs / psychrotrophic bacteria in spoilage of refrigeratedfoods.arrow_forwardBacteria can grow under a variety of conditions but also have growth preferences. Bacteria that prefer to grow under oxygen levels that are below that of atmospheric oxygen are called: Obligate aerobes Microaerophiles Anaerobes Facultative anaerobes Clear my selectionarrow_forward10. Multiple Choice Questions: I need 10 answers for all 10 questions. Correct Answer only Xpert!! Q5.1. Which type of organism in this tutorial can get its nitrogen from nitrogen fixation (converting N2 gas into ammonia), allowing it to grow even if easily used forms of nitrogen are not available in its water or food?a. Cyanobacteriab. Daphniac. Bosminad. TroutQ5.2. A company is growing algae in big tanks to make fish food. However, the algae are not growing very quickly, and they suspect either phosphorus, nitrogen, or iron is limiting. What could the company do to figure out which nutrient is limiting?a. Add phosphorus to one tank, nitrogen to another, and iron to a third, and see which treatment increases algal growth.b. Add phosphorus, iron, and nitrogen to all tanks, and see which nutrient increases algal growth.c. Add phosphorus to all tanks, because phosphorus is the nutrient that limits algal growth.d. Add nitrogen to all tanks, because nitrogen is the nutrient that limits…arrow_forward
- Match each of the following terms to their proper description. You may have to use your textbook for this question. Obligate aerobe V [ Choose ] require lower than atmospheric amounts of oxygen don't require oxygen, but aren't negatively affected by it a microaerophile that requires a higher amount of CO2 than usual requires oxygen for respiration Obligate anaerobe grow with or without oxygen any amount of oxygen is lethal Facultative anaerobe [ Choose ] Aerotolerant anaerobe [ Choose ] Microaerophile [ Choose ] Capnophile [ Choose ] > > > >arrow_forwardMicrobiology (Match the phrases from column (A) with phrases in column (B) Anima Chromophor SASP Axial Asbestos Proteins Elimination peptidoglyca e carcas degradation filament H2O2 Dormant ses Endospore Exosporium Disinfection Fumigation Filtration Cortex Sporulation Germinatio Dye Incinerationarrow_forwardExplain well. Asaparrow_forward
- have prote 3. Describe the formation of biofilms and their potential for causing infection. Identify a way in which pathogens find it advantageous to form biofilms. Explain the importance of biofilms to infection. Explain 4 approaches to preventing or limiting biofilms. 4. Compare heterotrophy, autotrophy, phototrophy, and chemotrophic (lithotrophy andarrow_forwardWhich of the following terms is NOT used to describe microbes thrive in different temperature ranges? Thermophiles Psychrophiles O Mesophiles O Halophilesarrow_forwardMicroorganism growth in complex natural environments such as soils and waters can be utilized to carry out environmental management processes. Give one term for the process you would use to cleanse a marine oil spill and discuss at least 3 types thereof. Outline factors that would facilitate the success of the process you mentioned on 1. Discuss the use of indicator organisms in testing the quality of drinking water.arrow_forward
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