list three N-removal Tertiary treatment approaches in order of decreasing cost of operation. State the microbiology (taxa and process) that is respinsible for the lowest cost process.
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- On Aseptic Techniques: What is/are the instances/situations that each method of inoculation is to be used?Define the following terms; streak plate method, and selective media. State the purpose and importance of both.Topic: Spread-Plate Method Agar was not completely set prior to inoculating with the organism. Effect:Rationale:
- Guide Questions: Differentiate the types of culture media based on its physical state and uses. What makes agar good support for microbial growth?Identify the method of sterilization/ chemical agent described This chemical agent is used as a standard for evaluating new chemical agents. This chemical agent is used as water disinfectant. A phenol-derivative that is less exotic and more potent than phenol. Considered the best antiseptic. Used as prophylaxis for ophthalmia neonatorum.困 Topic: laboratory Instrument Which of the following are TRUE regarding Which of the following is/are TRUE the use of laboratory instruments and regarding the use laboratory instruments equipment in regards to making of culture media? " and equipment? * Air bubbles on the surface of agar plates Hot plates can be used to sterilize the inoculating loop and needle. can be removed by fanning them with the luminous flame of the bunsen burner. If the agar surface is wet, it can be dried by A drying oven is used to sterilize nutrient agar, a solid culture medium. heating at 30-40 deg C in the drying oven before inoculation is done. The refrigerator is used to grow psychrophiles. All media taken from the refrigerator should be warmed to room temperature before use, P Type here to search 7:11 pm 30/09/2021 ヘロG) ENG 近
- Explain shortly the concept of differential centrifugation and how you would limit pellet contamination which is a disadvantage of this technique.NOTE: Kindly provide references. 1. Differentiate between defined and undefined culture media. 2. Define alpha, beta, and gamma-hemolytic reactions on blood agar media (BAM). Cite two (2) examples of bacteria causing the above hemolytic reactions.Choose one specific way from each of the two methods of inhibiting the growth of microbes below. Describe the method, explain the mechanism of action of killing the microorganisms and give practical applications of your chosen ways. 1. Physical Methods - Heat, cold, dessication, radiation, ultrasonic waves, filtration, gaseous atmosphere 2. Chemical Methods- disinfectants, antiseptics
- Considering microbial identification methods, to which category would the following method belong based on what it measures? * Performing a hydrogen peroxide breakdown assay to see if a microbe produces the enzyme catalase Serological O Biochemical Genotypic PhenotypicExplain the significance of aseptic culture technique in growing microorganisms.1. Identify the test/stain in Microbiology 2. Indicate the observations of a positive result and a negative result for each test/stain 3. Explain what each positive result and each negative result mean interpretation for each test/stain 4. Identify the organisms that are removed from your possible identifications at each stage of the flow chart, and which organisms remain as possible identifications at these steps as well