Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
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Chapter 27, Problem 10R
NAME IT
10. These nitrogen-fixing prokaryotes provide nitrogen fertilizer in rice paddies; they live symbiotically in the cells of the freshwater plant Azolla.
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Can someone please help me with 3 multiple choice question, please choose the best that fits, Thank you
1) Most of the nitrogen on earth is contained in nitrogen gas in the atmosphere, which of the following orgnisms convert nitrogen to a form accessible to the rest of the biological community ?
A)fungi
B)nitrogen fixing prokaryotes
C) plants
D) nitrogen fixing protists
2)if a meteor impact or volcanic eruption injected a lot of dust into the atmosphere and significantly reduced the sunlight reaching Earth's surface for one year, which of the following marine communitites would be least affected?
A)coral reef
B)estuary
C) intertidal
D) deep -sea-vent
E) wetlands
3)In terrestrial biomes, which factor is dependent on all the others?
A)mineral nutrient availability
B)annual average precipitation
C) soil structure
D)the specific plant and animal species
E) light availability
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 complex
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 - 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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- Which of these occurs through symbiotic nitrogen fixation? The plant benefits from using an endless source of nitrogen The soil benefits from being naturally fertilized Bacteria benefit from using photosynthates from the plant All of the above occur.arrow_forwardMicrobiology question. Can you please choose the write answer and explain why it’s right and others are wrong.arrow_forward"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…arrow_forward
- Agrobacterium tumefaciens carries a _______ that enters dicotyledonous (dicot) plant cells, transforming the cells into tumor cells and causing crown gall disease.arrow_forwardI am stuck on my homework α-proteobacteria species are important because ______? Choose all the correct statements below to fill in the blank above. Group of answer choices they can serve as mutualistic symbionts they can serve as parasitic symbionts they once served as a mutualistic symbiont to produce the mitochondria their lineage gave rise to the lineage of all eukaryotesarrow_forwardProkaryotes that obtain their energy from chemical compounds are called _____________. phototrophs auxotrophs chemotrophs lithotrophsarrow_forward
- NEED ASAP THANK YOUarrow_forwardasap please.arrow_forwardMatch the description listed below to the correct bacterium. Grows in intestine of ruminants like cows. [Choose ] Can be found in raw milk. If ingested, can cause spontaneous miscarriage in women, neonatal sepsis and meningitis [Choose ] Listeria monocytogenes_ Can grow in high salt environments. Makes a Staphylococcus aureus_ heat stable enterotoxin Campylobacter_ When the toxin this pathogen makes is _Vibrio cholerae_ ingested, can cause "projectile vomiting" Streptococcus pyogenes_ Can grow as a mesophile in humans, but also can grow as a psychrophile in refrigerators [ Choose ] A leading cause of food-borne infections, grows on fecal contaminated raw poultry (e.g. raw chicken), forming a biofilm. A [Choose ] microaerophile Question 41 How can Clostridium tetani survive in aerobic environments?arrow_forward
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