Microbiology: An Introduction (13th Edition)
13th Edition
ISBN: 9780134605180
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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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…
1. Nitrogen-fixing bacteria reduce ammonia to nitrogen gas.
true or false
Chapter 27 Solutions
Microbiology: An Introduction (13th Edition)
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 - 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 - Prob. 1ACh. 27 - Explain the effect of dumping untreated sewage...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
- Hi can I get help on this microbiology question please? I am stuck and do not understand it. Thank you A prokaryotic cell hitched a ride to Earth on a space shuttle from some unknown planet. Microbiologists studied the microorganism and concluded it is a psychrophile, an obligate halophile, and an obligate aerobe. 1. Based on the characteristics of the microorganism described in this case, describe at least three characteristics that the unknown planet where the microorganism lived before must have so that it can survive in it. 2. Explain the following microbial characteristics or terms in complete sentences: psychrophile. obligate halophile. obligate aerobe.arrow_forwardFill in the blanks. In the Nitrogen cycle, into are responsible for converting denitrifying bacteria/ammonium and ammonia/atmospheric nitrogen O nitrifying bacteria/ammonium and ammonia/nitrites and nitrates nitrogen-fixing bacteria/ammonium and ammonia/atmospheric nitrogen Onitrogen-fixing bacteria/ammonium and ammonia/nitrites and nitratesarrow_forward12. Where do microorganisms with magnetosones inhabit in nature? " atmo-ecosphere soil surface deep bottom sediments pelagic waters 13. Bacterial colonies will continue to grow in size inside nutrient agar plate after prolonged incubation such as up to a month. * True False 14. The actual amount of available water (Aw) for microbial growth is limiting in both desert and arctic biomes. * True Falsearrow_forward
- Which of the following is not correct about nitrogen fixation? Carried out only by few prokaryotic organisms termed diazotrophs It requires metabolic energy None of the above Enzyme that catalyzes the reduction of nitrogen is termed as nitrogenase complexarrow_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_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_forward
- Significance of psychrotrophs / psychrotrophic bacteria in spoilage of refrigeratedfoods.arrow_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_forwardMatch 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_forward
- Microbiology (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_forward1. Answer the following about Corynebacterium diphtheria... Oxygen requirement: Is it classified as an obligate aerobe, facultative anaerobe, microaerophile, aerotolerant, or an obligate anaerobe? Salt requirement: Is it classified as a nonhalophile, halotolerant, halophilic, or as an extreme halophile? pH requirement: Is it classified as an acidophile, a neutrophile, or an alkaliphile? Temperature requirement: Is it classified as a psychrophile, a mesophile, a thermophile, or a hyperthermophile?arrow_forwardWhat is yeast? Why is it a widely used microbe in food industrial microbiology? What characteristics does it have that makes it a beneficial microbe for wine, bread, juices, and the like? Enumerate the processes it undergoes, products it produces, and interactions with other microbes it has. Provide an example of a food product that makes use of yeast, and how yeast is involved in that production processarrow_forward
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