Explain the polycarbonate nucleopore filtre, Biology

Assignment Help:

Explain the Polycarbonate Nucleopore Filtre?

A given sample is filtered through a membrane filter, usually polycarbonate nucleopore filter with a pore size that will retain bacteria (generally 0.22 µm or 0.45 µm). Viable counts are made by placing the filter on agar medium plate or on an absorbent pad saturated with the culture medium. Alternatively, direct microscopic counts are made, the efficiency of which can be improved by using fluorescent dyes and epifluorescence microscope. Membrane filter technique can be used only for small samples of dilute homogenates.


Related Discussions:- Explain the polycarbonate nucleopore filtre

Gonial apospory and somatic apospory, Gonial Apospory and Somatic Apospory ...

Gonial Apospory and Somatic Apospory Gonial Apospory There is no meiosis. The megaspore mother cell enlarges; a small vacuole appears above and below the nucleus. The c

Ststems of human body, what is reproductive system? what is urinary System?...

what is reproductive system? what is urinary System? What is Nervous system

Tissue culture, Tissue culture The ability of a plant cell to give r...

Tissue culture The ability of a plant cell to give rise to a whole plant is called totipotency. The culture of a cell or a tissue in a suitable medium to produce new plan

Determine functions of zinc in the body, Determine Functions of Zinc in the...

Determine Functions of Zinc in the Body? Zinc is an essential component of a large number of enzymes participating in the synthesis and degradation of carbohydrates, lipids, pr

History of animal taxonomy, Q. Show the History of animal taxonomy? The...

Q. Show the History of animal taxonomy? The beginning of animal taxonomy was made by Aristotle (384-322 B.C.). He extensively studied about anatomy, embryology, habit and ecolo

Discuss about the function of tear film in short, Discuss about the functio...

Discuss about the function of Tear Film in short. Functions of Tear Film The normal function of the eye is dependent on sufficient supply of tear fluid- a secretion

Explain viruses and their classification, Explain Viruses and their classif...

Explain Viruses and their classification? Viruses are living organisms. Viruses are not living organisms. No, the above is not a misprint! In fact, viruses defy the normal c

Phylum annelida, PHYLUM ANNELIDA Definition  and Introduction Bila...

PHYLUM ANNELIDA Definition  and Introduction Bilateral and  protosomial  eucoelomate  eumetazoans  whose  long   narrow and  wormlike body  is division  into  ring like  t

Determine nutritional requirements for high altitude, Determine Nutritional...

Determine Nutritional Requirements for High Altitude? High terrestrial altitudes and mountains have aroused great fascination and cham for mankind. Every year millions of peopl

What proportion of changes in the third position, If a codon is CDC, what p...

If a codon is CDC, what proportion of nucleotide changes in the third position result in a new amino acid? If the codon is AGG, what proportion of changes in the first position res

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