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

Determine what is the Cell Cycle, The cell cycle undergoes a sequence of ch...

The cell cycle undergoes a sequence of changes which involve a period of growth replication of DNA, Followed by cell division. This sequence of changes is called cell cycle.

What are the respective functions of homologous chromosomes, What are the r...

What are the respective functions of the separation of homologous chromosomes and of the separation of identical chromatids in meiosis? The separation of homologous chromosomes

What are the etiological agents of malaria, What are the etiological agents...

What are the etiological agents of malaria? The etiological agents of malaria are protozoans of the genus Plasmodium. There are four dissimilar types of plasmodia that cause ma

Explain about ecological species concept, Q. Explain about Ecological speci...

Q. Explain about Ecological species concept? The ecological species concept: This identifies a species as a population that occupies a distinct ecological niche, whence its rep

What are d-glucose and d-galactose, D-glucose differs from D-galactose onl...

D-glucose differs from D-galactose only in the arrangement around carbon 4. Therefore D-glucose and D-galactose are- Select one: a. enantiomers b. epimers c. mirror ima

What are the reagents and products of fermentation, In general what are the...

In general what are the reagents and products of fermentation? In fermentation glucose (sugar) is degraded into pyruvic acid (every glucose molecule forms two pyruvic acid mole

Biosecurity in poultry health management, B i osecurity in Poultry Health...

B i osecurity in Poultry Health Management Biosecurity includes all the measures that are taken to prevent infection to individual, material and environment from the pathogen

Explain the wound breakdown, Wound breakdown With careful flap design a...

Wound breakdown With careful flap design and gentle tissue handling this is a rare complication. The healing which follows is by secondary intention and can be aided by chlorhe

Explain iodophors, In these disinfectants, iodine is incorporated along wi...

In these disinfectants, iodine is incorporated along with a detergent. They are not as effective as hypochlorites against bacterial spore but also get inactivated in the pres

Which kind of polarity do fat-soluble substance has, Q. Which kind of polar...

Q. Which kind of polarity do fat-soluble and water-soluble substances respectively have? Ans. Water-soluble substances are behave as polar molecules, i.e., they have e

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