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The purpose of the spread-plate technique is to grow and isolate colonies of bacteria. A sample of bacteria is transferred to the agar plate, an environment that provides nourishment for the bacteria to grow. The bacteria sample is applied to the agar plate which a special streaking technique that dilutes the amount of bacteria in each section of the agar plate continuously. This is because if you just swabbed the bacteria onto the plate with no special technique the colonies would grow very densely together and be difficult to study. The streaking technique gradually dilutes the amount of bacteria in each 'quadrant' of the plate, so the last quadrant should have small, isolated colonies that can be easily studied. The spread plate technique is also used for the eneumeration of aerobic microorganisms from the given sample. This can be done by serial diluting the samples, placing 0.1ml of the diluted sample in the middle of an agar plate and spreading the sample over the surface with a help of an L-rod. After the incubation rhe colonies can be counted.
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What are the advantages and disadvantages of the scientific method?
Advantages of using scientific methods: You can test in many different ways, and the more times you test, the more accurate your results will be. Disadvantages of using scientific methods: You can come up with different results which can disprove your hypothesis, and this leads to inconsistent conclusions.
What are the advantages and disadvantages of old and modern irrigation methods?
in the older irrigation method there would have been an anormous waste of water which is a disadvantage.in the newer irrigation method,there is conservation of money,land space and water too.
The advantages of using the scientific method When studing environmental issues?
The advantages of using the scientific method when studing environmental issue?
Mintzberg's work method?
mintsberg methods???
What are the different methods in gathering data?
There are many different methods for gathering data depending upon the industry and the objective. Some of the methods include direct Interviewing, indirect or questionnaire, registration method, and experimental method.
What are the advantage of organization and methods?
advantages of organisation and method team
What are the advantages of PowerPoint presentations over the other presentation methods?
what are the advantages of powerpoint over the other presentation method
What are the the advantages of methods in java programing?
Methods are similar to functions or procedures in non-OOP languages, but methods are associated with a specific object (which, in turn, is based on a specific class); so the advantages of using methods are related to the advantages of OOP in general. Specifically, in the case of methods, you can use the same method name to do different things for different types of objects - for example, a show() method would work differently, depending on what object it works on.
How do you make your hair into dreadlocks?
There are many methods, and which one you should use depends on your hair type.Go to the link titled Dreadlock Methods to read about the different methods, advantages and disadvantages of each method, and which method will work best with your hair type.never use wax
Are the different streak methods appropriate to the cell densities recovered?
Yes, different streak methods are appropriate for different cell densities recovered. For high bacterial densities, the zig-zag streak method can help isolate individual colonies. For low bacterial densities, the lawn streak method can be used to spread out the bacteria for better visibility and isolation of colonies.
How can one accurately measure bacterial growth in a petri dish?
To accurately measure bacterial growth in a petri dish, one can use a method called colony counting. This involves counting the number of visible bacterial colonies that have formed on the agar surface of the petri dish. This can be done using a colony counter or by manually counting the colonies. Additionally, measuring the diameter of the colonies can also provide an estimate of bacterial growth.
What are the advantages of descriptive research methods?
The descriptive method of research refers to the process of observing and describing a topic of study, rather than trying to answer a hypothesis. There can be many advantages of the descriptive method of research. For example, a descriptive method of research does not interfere with populations existing in a habitat.
How can a positive result occur during capsule staining?
Capsules may be revealed by methods such as Maneval's method. This method utilizes negative staining, where the background is stained revealing an unstained structure: the bacterial capsule.
Which separation method is not good for cultures containing a great deal of bacterial growth?
Filtration is not a suitable separation method for cultures with high bacterial growth because the bacteria can clog the filter pores and inhibit proper separation. This can lead to inefficient filtration and potential blockages that may damage the equipment. Instead, centrifugation or sedimentation methods are more effective for separating high bacterial loads.
What are the methods of castration?
There are three main methods to castration. These are: banding, cutting, and pinching. Each method has their own advantages and disadvantages.
What are the advantages and disadvantages of deductive method?
the advantages of deductive method
What are the advantages and disadvantages in deductive method?
There are clear advantages to the deductive method. These include that the person is more likely to learn and remember how they got to the answer in the future and also they remember the stages they have gone through. A major disadvantage is that it does take longer than other methods.
