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: Is the plasmodium falciparum a facultative anaerobe? If not, what would it be?
A: Plasmodium falciparum is a protozoan parasite, that is the causative agent of the most severe form…
Q: Phenyl Ethyl Alcohol agar encourages the growth of what type of microorganisms?
A: Answer - Option A - Gram positive bacteria
Q: What are the most common methods of male and female surgical sterilization?
A: Fertilization is a natural process of producing children and offspring where the male gamete(sperm)…
Q: why is it that psychrotrophs placed in TSA medium are incubated at 7oC?
A: Psychrophiles are organisms that can survive and reproduce in low temperatures as low as -20 degrees…
Q: How does treatment of drinking water and sewage vary in purposeand techniques?
A: Drinking water treatment is done on raw water to make it pure enough for human consumption by…
Q: Describe the three stages of sewage treatment.
A: Sewage water is the wastewater produced after the household uses, industrial uses, and purposes. So,…
Q: Why do we test water for coliforms if they are not considered pathogenic?
A: Introduction Coliforms are gram-negative, non-sporulating and motile or immotile bacteria. They…
Q: Colonies that produce alkaline waste on Hektoen enteric agar will turn O blue-green. pink. black. O…
A: In presence of colonies , alkaline waate on hektoen enteric agar turn into blue green color.…
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 rationale for selecting E. coli as the indicator of water potability?
A: We are all aware of the fact that , water is crucial and vital for sustainability of life on earth.…
Q: Why must you exercise caution when handling raw sewagesamples?
A: Answer: Introduction: Raw sewage means a water comprising excrement, wastes products like plastic,…
Q: What is a generally minimum pH for growth and toxin production by Clostridium botulinum and other…
A: Clostridium botulinum is a Gram-positive, rod-shaped, anaerobic, spore-forming, motile bacteria that…
Q: Explain the function of the ferrous ammonium sulfate in SIM agar.
A: SIM agar test is used for the differentiation of gram-negative enteric bacilli based on their…
Q: when heat treatment is used as to contril microbial growth, what is the immediate impact of this…
A: The process of killing microbes or preventing their growth is called as sterilization. Sterilization…
Q: Why is heat an effective sterilizing agent?
A: Heat Energy : It is a form of energy which takes place by the movement of the minute particles…
Q: Describe and explain the major steps in the process ofwastewater treatment. How can artificially…
A: Introduction :- Wastewater treatment is the process of removing contaminants from wastewater and…
Q: How does Efficient waste management improve aqua culture production
A: Environmental Biology is a branch of science that is the junction of environmental science, ecology,…
Q: what are psychrotolerant bacteria and examples of it.
A: Psychrotolerant bacteria Psychrotolerant bacteria, or those that can grow at temperatures below…
Q: Why should culture media after inoculation be incubated at an optimal temperature immediately?
A: Culture media, also called as growth media, are particular combinations of nutrients and other…
Q: What is the relation of microbail growth to microbial physiology?
A: Microbes are small organisms that are found in a diverse range of habitats. The rate of growth and…
Q: what is the cause of different species of psychrotrophic bacteria growing in the CTSA medium at 7…
A: They can grow at extreme low temperatures and lead to spoilage of food by modifying the compounds…
Q: Is colistin Naladixic acid agar selective and/or differential? Explain
A: C-CNA (Columbia-CNA Agar) is a form of selective media that favours Gram-positive bacteria.
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: Why should caps of glassware be loosened first before sterilization? [Answer in not more than 2…
A: Sterilization is defined as the process which removes , kills or deactivates all forms of life (in…
Q: Why is Escherichia coli used as an indicator organism inmicrobial analyses of water?
A: The well-known gram-negative bacteria are E. coli (Escherichia coli).
Q: Which microbial control agent would most effectively inhibit anaerobes and why
A: Hydrogen Peroxide
Q: Leachate production is what
A: A leachate is any liquid that, extracts soluble or suspended solids from the material through which…
Q: When would tertiary treatment of wastewater be necessary ?
A: Water is the important natural resources.Water treatment is done in order to reuse the water again…
Q: Wastewater treatment process is endothermic or exothermic?
A: The wastewater treatment process is done in the wastewater treatment plant. It is completed in three…
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: Why is 15 minutes generally used for sterilization? Why is agar added to medium?
A: Sterilization is the process in which all life forms like microbes (fungi, bacteria, viruses,…
Q: household contaminated wastewater purification
A: Microorganisms from sewage can cause human disease, but can also negatively affect important…
Q: Name any two gases produced during secondary treatment of Sewage?
A: Wastewater treatment involves removal of harmful contaminants from the wastewater or sewage water…
Q: What are the possible solutions for burning of waste due to absences of garbage collector.
A: Waste management is an important facet in todays life considering the rapid in crease in…
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 would a psychrophile not be a human pathogen?
A: Microbes are classified according to the temperature range at which they can grow. The development…
Q: What specific purposes do sedimentation, coagulation,filtration, and disinfection accomplish in the…
A: Earth is so far the only planet that has the capability to sustain life on it. There are many…
Q: What method can be used to achieve sterilization?
A: It is required to describe the method to be used to achieve sterilization.
Q: Every year, supposedly safe municipal water supplies causeoutbreaks of enteric illness.a. How in the…
A: Water pathogens enter the water sources by faecal contamination. When the infected person or animal…
Q: Describe the appearance of coliforms on Levine EMB agar.
A: Coliform bacteria are found in a diverse range of places like waste products of animals, water…
Q: Why does Propionigenium modestum require sodium for growth?
A: Propionigenium modestum grows from the fermentation of succinate to propionate and CO2.
Q: Which of the following treatments of sewage involves the use of anaerobic bacteria? A. Primary…
A: Sludge digester is a biological process where organic substances are decomposed and finally stable.
Q: List 2 non-chemical means of disinfection.
A: Disinfection refers to the process by which most pathogenic disease-causing microorganisms, except…
What advantages does the anammox
process have over classical wastewater treatments for N removal?
Step by step
Solved in 2 steps
- When would tertiary treatment of wastewater be necessary ?What is the importance of anammox in the treatment of wastewaters?Which statement among A-C is not applicable to flocculation, or floc formation, during wastewater treatment? A) O Filamentous bacteria enhance floc formation. B) O Flocculation is important for the production of a clear effluent stream of wastewater. O O Flocculation decreases the amount of BOD entering the effluent stream of wastewater. D) OA-C are all applicable.
- What key role does Acidithiobacillus ferrooxidans play in thecopper leaching process?Describe and explain the major steps in the process ofwastewater treatment. How can artificially constructedwetlands aid such treatment?Given its merits, why has advanced wastewatertreatment not been widely adopted?
- This number is always less than one a) Dilution factor Ob) Dilution c) Both dilution factor and dilution d) Neither dilution nor dilution factorDescribe the appearance of coliforms on Levine EMB agar.Is the Mueller-Hinton Agar (MHA) a complex or defined medium? Explain based on its composition. Is MHA a A) differential, B) selective, C) both differential and selective media, or D) neither? Explain based on what kind of microorganisms it allows to grow.