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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There a few advantages of using the spread plate method. One of the advantages of using the spread plate method is it is better for isolating the bacteria colonies. It also is helpful in isolating organisms.
The spread plate method is used in microbiology to grow colonies of yeast. It is advantageous compared to the pure culture method because it is easier to isolate specific colonies, however less colonies have a chance of surviving.
serial dilution can give the relation b/w the consenteration and the growth of bacteria
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.
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 issue?
mintsberg methods???
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.