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

Definition of osseointegration, Q. Definition of Osseointegration From the ...

Q. Definition of Osseointegration From the view of the patient? An implant fixture is osseointegrated if it provides a stable and apparently immobile support of a prosthesis un

Define the process of digestion of fats, Define the Process of Digestion of...

Define the Process of Digestion of Fats? The enzyme in human gut which is responsible for fat digestion is 'lipase', Lipase is secreted by both stomach and pancreas. In stomach

What is pancreas , What is Pancreas ? The pancreas lies in the abdomina...

What is Pancreas ? The pancreas lies in the abdominal cavity in a loop between the stomach and small intestine. The pancreas consists of two major types of cells: those produci

Open or blunderbuss apex or divergent roots, Open or Blunderbuss Apex or di...

Open or Blunderbuss Apex or divergent roots The mechanical cleaning & shaping of teeth with blunderbuss canal apex are very difficult if not impossibly orthogratly due to 1

Define the armamentarium, Define the Armamentarium a) Micro-mirrors (ma...

Define the Armamentarium a) Micro-mirrors (magnification: x 40, Size: 0.5) b) Micro-probe c) Micro-blades, tissue retractors d) Burs e) Retrograde Tips "round bur

Illustrate about urine of humans, Urine Normal urine is clear, yellow i...

Urine Normal urine is clear, yellow in colour, slightly acidic. Urine consists of 96% water and 4% solids like urea, uric acid, urates, chlorides, phosphates, oxalates, sulphat

What are holandric genes, What are holandric genes? The Holandric genes...

What are holandric genes? The Holandric genes are genes situated in the nonhomologous region of the Y chromosome. Holandric genes condition phenotypes that emerge only in men s

Zoology, differences regarding Tiger Planaria and the Iridescent Phyllodoce...

differences regarding Tiger Planaria and the Iridescent Phyllodoce

What proportion of children with down syndrome, What proportion of children...

What proportion of children with Down syndrome do you expect when women with down syndrome have children with men who have 46 chromosomes Justify your answer

What are heterochromatin and euchromatin, What are heterochromatin and euch...

What are heterochromatin and euchromatin? Chromatin is uncondensed nuclear DNA, the typical DNA morphology in interphase (the phase of the cell cycle in which the cells is not

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