Define disadvantages of using the plate counts method, Biology

Assignment Help:

Define Disadvantages of Using the Plate Counts Method?

1. It takes time, usually 24 hours or more is required to obtain visible colonies.

2. Microbial count obtained depends upon the culture media used for plate counts.

3. It is not a very useful method for actinomycetes and moulds because in plate counts, it is the asexual spores, which are counted.

4. More glassware is needed.

5. Errors in result may arise due to errors in dilution or plating.

6. Results are expressed as counts forming unit per ml (CFU/ml) rather than as number of microbes.  It is so because many microbes are present in chains and clusters and it is difficult to be absolutely certain that each colony has arisen from a single cell.  A colony might be produced from a short segment of a chain or from a bacterial clump.


Related Discussions:- Define disadvantages of using the plate counts method

Explain clinical dietitians, Explain Clinical dietitians Clinical dieti...

Explain Clinical dietitians Clinical dietitians, sometimes called therapeutic dietitians, are associated with health care institutes, hospitals and nursing homes. Depending on

Explain the working of antioxidant function, Explain the working of antioxi...

Explain the working of antioxidant function? The antioxidant function depends on the number of hydroxyl groups and their positions. Among the various derivatives, flavonoids ar

Illustrate homologous chromosomes, Q. In which period of meiosis does the p...

Q. In which period of meiosis does the pairing of homologous chromosomes occur? The pairing of homologous chromosomes is a very important step for meiosis because the rightness

Skeleton, biological significant of a skeleton

biological significant of a skeleton

Explain the concept behind freezing the milk, Concept behind Freezing the m...

Concept behind Freezing the milk Freezing the milk also alters its composition and properties to a great extent. Let us learn about these changes. As the milk freezes, it becom

Explain the nucleic acid is the transforming agent or not, Fredrick Griffit...

Fredrick Griffith published a series of experiments that collectively were dubbed "The Transforming Principle" in 1928. Which of the following prevented him from being able to decl

Emboly - mechanism of gastrulation, EMBO L Y - The embolic morphogene...

EMBO L Y - The embolic morphogenetic movements are concerned with the inward migration of prospective endodermal and mesodermal blastomeres from the external surface of blast

Population growth, Increase in population size is known as population growt...

Increase in population size is known as population growth. It depends upon number of persons added to the population and number of persons lost from the population. Addition in pop

Disaccharides, DISACCHARIDES They are oligosaccharides composed of t...

DISACCHARIDES They are oligosaccharides composed of two monosaccharide residues . Three common disaccharides are    sucrose (glucose + fructose) = cane suger maltose

What is dna libraries , A DNA library is a collection of cloned DNA fra...

A DNA library is a collection of cloned DNA fragments in a cloning vector which can be fined for a DNA of interest.  If the target is to isolate particular gene sequences.

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