Q: What are ambient microorganisms? Why should they not be present duringsubculturing?
A: There are some living organisms that cannot be seen by the naked eye and only can be seen under the…
Q: What are examples of a bacterium that produces a biofilm ?
A: A biofilm is a complex structure formed by many different bacterial colonies.
Q: Imagine a sewage plant that is releasing sewage containinghigh levels of ammonia and phosphate and…
A: Sewage refers to wastewater, which is produced due domestic or industries. It contains a variety…
Q: Bacterial biofilm may link to
A: Answer: Biofilms are the complex structure composed by the various microbes such as bacteria , fungi…
Q: What aare Agrobacterium tumefaciens ? why they are used ?
A: BASIC INFORMATION MICROBES They are the unicellular organisms which can not seen by naked eyes…
Q: Why are endospore forming bacteria commonly found in soil?
A: A bacteria is a cell which is susceptible to a variety of environmental stress. Any environmental…
Q: Why are there so many antibiotic-producing organisms in soils?
A: Soil is densely packed with microorganisms.
Q: Why are there so many antibiotic-producing organisms in soils?Explain it
A: Antibiotics are secondary metabolites which are produce by the bacteria as a part of their natural…
Q: Why canal/pond water supports growth and development of microbes?
A: Introduction Habitat is referred to the place where any species resides. This can be any…
Q: Why does secondary treatment of wastewater require O2?
A: Secondary treatment is a part of wastewater disposal system, where the sewage or other waste waters…
Q: What is the significance of finding coliforms in drinking water?
A: Some living organisms cannot be visible by the naked eye and only can be seen under the microscope.…
Q: How do primary and secondary wastewater treatmentmethods differ?
A: Wastewater treatment as the term suggest the removal of contaminants from the wastewater before…
Q: what is the present microorganisms in soft swell spoilage?
A: Canning is a type of food preservation method, which includes the preservation of food in air tight…
Q: What are the species of anaerobic bacteria which can be found in chronic wound?
A: Introduction Anaerobic bacteria are bacteria that do not live or grow when oxygen is present or that…
Q: Why are extended periods of exponential microbialgrowth in nature rare and often slower than…
A: Microbial growth is the proliferation of the microbe into genetically identical daughter cells, by…
Q: Explain the Agrobacterium ?
A: Ans: Agrobacterium: These are Gram-negative organisms which are discovered by H.J. Conn
Q: What is a disease and why is it an important issue in aquaculture?
A: Introduction Aquaculture:- Aquaculture is the farming of aquatic animals or plants, including…
Q: What bacteria grow on both a MacConkey agar plate and Mannitol Salt agar?
A: Selective media The media is a kind of growth media which only allow the growth of a perticular…
Q: Which organisms, if any, caused flat sour spoilage?
A: It is variability and varieties of life on earth. It is a measure of variation at species, genetic,…
Q: How is microbial growth directly dependent on temperature?
A: Microbes are minute, unicellular/multicellular, prokaryotic living organisms that cannot be seen…
Q: Why in cake and bread manufacture are alcoholic fermenting organisms used and not lactic fermenting…
A: The metabolic process in which enzyme acts on an organic substrate that leads to certain chemical…
Q: How would a facultative anaerobe growth curve change if it was placed in the presence of oxygen…
A: Facultative anaerobes are organisms that survive in the presence of oxygen and use oxygen for…
Q: Name the microbe that is grown for use as protein – rich food?
A: Proteins are polymers made of polymers of structural units called amino acids. They are involved in…
Q: hy is nutrient broth considered as a universal growth medium for bacteria?
A: Nutrient Broth is a general-purpose medium for growing a wide range of fastidious and non-fastidious…
Q: What sources of microbial contamination are in nutrient agar exposed in air,water,soil and plant…
A: Sources of microbial Contamination: - AIR: - Air contains a lot of bacteria staying afloat in the…
Q: what are these bacteria growing on BA and Maconkey agar
A: Blood agar or BA is an enriched culture medium having multiple nutrients. Blood agar is generally…
Q: Which common hospital pathogen is able to grow abundantly in soap dishes?
A: The most common type of the prokaryotes is bacteria. They are found in every existing environment on…
Q: What is the role of nitrate in microbial metabloism?
A: Nitrogen-fixing bacteria, microorganisms capable of transforming atmospheric nitrogen into fixed…
Q: How does the biofilm growth mode differ from that ofplanktonic cells? Which growth mode better…
A: Biofilm basically refers to the matrix like a thing that helps the cells to stick to one another. It…
Q: how often must bacteria be subcultured from a broth to maintain culture viability?
A: Answer: Sub-culturing is the method of regrowth of the bacterial cells in to a freshly prepared…
Q: What is the importance of anammox in the treatment of wastewaters?
A: The bacterial phylum called Planctomycetes consists of organisms that carry out anaerobic ammonium…
Q: Which microbe is grown for use as protein – rich food?
A: Proteins are polymers made up of polymers of amino acids, which are structural units. They act as…
Q: Would all microorganisms exhibit the same bacterial growth curve? Why?
A: The bacterial growth curve is a closed curve, it is typical in nature for all microorganisms. All…
Q: Why is it important to distinguish between E.coli & E. Aerogenws in contaminated water samples?
A: E.coli is a rod-shaped, gram -ve, facultatively anaerobic, coliform bacterial species that is…
Q: Why do soil microbes naturally produce antibiotics?
A: Antibiotics are metabolic products of microorganisms that inhibit or completely destroy the growth…
Q: What physical and chemical conditions are necessaryfor the rapid microbial degradation of oil in…
A: Biodegradation refers to the transformation of complex organic compounds by bacteria, fungi, and…
Q: Describe the procedure involved in Sewage treatment?
A: Sewage treatment is the process of removing contaminants from wastewater and household sewage water.…
Q: How is it possible for both aerobes and obligate anaerobes tocoexist in the same biofilm?
A: Biofilms are masses of one or more types of microorganisms that irreversibly attach and grow on many…
Q: how does psychrotrophic bacteria cause the spoilage of refrigerated foods?
A: The term psychrotrophs (additionally named psychrotolerant) alludes to microorganisms that can…
Q: Why are psychrotrophic bacteria of concern to those in the food-service industry?
A: Psychotrophs are mesophiles. They can grow at a low temperature such as 4℃. And, their optimal…
Q: How would light shone on one side of the Winogradsky column influence the growth of microorganisms?
A: Microbiology is the study of microscopic organisms, such as bacteria, viruses, archaea, fungi and…
Q: Which environment would a microaerophilic bacterium like the best?
A:
Q: Why is most decomposition typically anaerobic in the deep waters of lakes and oceans?
A: Decomposers are mainly bacteria and fungi are part of the food web. They break down dead organic…
Q: What are the four basic stages of biofilm formation?
A: The biofilm is a thin mucous layer that is formed by a bacterial colony and a few other…
Which bacterium reduces nitrates in soil to nitrogen?
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Solved in 2 steps
- What is the process by which bacteria convert nitrogen gas in the air to ammonia ?Why would farmers be concerned about nitrifying bacteria?d) Since we know this bacterial organism thrives in colder areas of the world, what can be said about the effect of temperature on the growth patterns ofthis bacterial organism? How would increasing the temperature affect the growth constant? e) If the bacterial organism is resistant to antibiotics, how would administering antibiotics affect the growth of this organism?
- Diseases that involve biofilm-producing bacteria are serious concern. They are not easily treated compared with those involving free-floating bacteria. Explain three reasons why biofilm formers are more pathogenic.Does the "lag" phase always occur during microbial growth? Explain.Why are there so many antibiotic-producing organisms in soils?
- Growth of microbes in a solid media is identified by the formation of? a) Pellicle at the top of mediab) Coloniesc) Sediment at the bottomd) TurbidityDissimilatory nitrate reduction carried out by bacteria can lead to loss of nitrogen as N, from the environment. A) O True B) O FalseHow is it possible for both aerobes and obligate anaerobes tocoexist in the same biofilm?