Explain direct microscopic count - measurement of microbes, Biology

Assignment Help:

Explain Direct Microscopic Count - Measurement of Microbes?

The most obvious way to determine microbial number is through direct counting under a microscope. In this method, a measured volume of the sample is placed within defined area on the microscopic slide and cells are counted under the microscope. In the breed count method for milk, 0.1 ml of the sample, is spread over a marked square centimeter area on a slide. Stain is added and the microbes are counted under a microscope for several different viewing fields. The average number of microbes/field can be calculated and used for calculating the number of microbes per square centimeter area or per 0.1 ml of the sample. Specially designed counting chambers like Petroff Hausser counting chamber, haemocytometer and electronic counter like coulter counter can also be used for direct measurement.


Related Discussions:- Explain direct microscopic count - measurement of microbes

Explain enzymes, Explain Enzymes Enzymes are the proteins that  act  ...

Explain Enzymes Enzymes are the proteins that  act  as  catalysts,  speeding the  rate  at which biochemical reactions proceed but not altering  the direction or nature of th

What is the association between sunrays and vitamin d, Q. What is the assoc...

Q. What is the association between sunrays and vitamin D? Vitamin D or calciferol is synthesized in the skin by the action of the ultraviolet range of sunrays upon precursor mo

Do you know about lateral lines of fishes, Q. What are the lateral lines of...

Q. What are the lateral lines of fishes? The lateral lines of bony fishes are sense organs that extend along both sides of the animal body they make contact with the environmen

Explain the process of angioplasty, Q. Explain the process of Angioplasty? ...

Q. Explain the process of Angioplasty? Inflation of stenotic segment causes stretching of the vessel, fracture of the intimal plaque, partial disruption of the media and adven

Buffers in foods, Some foods are better able to resist changes in pH than...

Some foods are better able to resist changes in pH than others. These tend to resist changes in pH since these are buffered and the ability to resist changes in pH is known as bu

How are roots affected by water, How are roots affected by water? Grow ...

How are roots affected by water? Grow some seedlings in single end of a glass dish or pan. When they are about 5 cm tall start watering them on one side only and a little dista

Infective endocarditis, Infective Endocarditis   It  is a term used to ...

Infective Endocarditis   It  is a term used to include subacute bacterial endocarditis as well as infection caused by viruses  and fungi.  The causative organisms responsibl

Development of reserves - conservation of wildlife, Development of Reserves...

Development of Reserves - Conservation of Wildlife Establishment of Biological reserves, National parks, Forest reserves, Wildlife refuges and Biosphere reserves are effective

Determine the gymnosperm abundance noteworthy, In which areas of the globe ...

In which areas of the globe is gymnosperm abundance noteworthy? These plants are the typical vegetation of cold regions as the taiga, or boreal forest, of the northern hemisph

While meiosis results in four diploid cells, Which of the following best co...

Which of the following best compares the results of mitosis and meiosis? Mitosis results in four diploid cells, while meiosis results in two haploid cells. Mitosis results in four

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd