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

How is carbon dioxide made by producers and consumers, Q. How is carbon dio...

Q. How is carbon dioxide made by producers and consumers? The Carbon dioxide is made by consumers and producers through cellular respiration.

Homomorphic types - intra specific incompatibility, Homomorphic Types - Int...

Homomorphic Types - Intra specific Incompatibility It is characterized by morphologically indistinguishable mating types within a species. A proper breeding is required for th

Define subphylum chelicerata, Define Subphylum Chelicerata - classes Arachi...

Define Subphylum Chelicerata - classes Arachinda AM merostomata? The subphylum Chelicerata includes familiar horse shoe crab, spiders, scorpions, ticks and mites. 1. Body consis

What are varices, What are varices? Why are they more common in the inferio...

What are varices? Why are they more common in the inferior limbs? Varix means abnormal enlargement of veins. Varices happen when excessive pressure against the normal blood fl

What is the need of monitoring and surveillance, What is the need of Monito...

What is the need of Monitoring and Surveillance? Monitoring, we know, is the act of observing something and sometimes keeping a .record of it while surveillance is a repeated s

Intracellular unbound oxygen, Two compartments of equal volume of physiolog...

Two compartments of equal volume of physiological saline are divided by a membrane permeable only to oxygen.  At 1 AM, equal amounts of oxygen are dissolved into both left and

Precautions by dangers of working in labs with animals, The dangers of work...

The dangers of working in labs with animals will be minimised if the following precautions are taken: 1. Wash all dissection instruments in disinfectant after use. 2. Never

Gastro epiploic artery and inferior epigastric artery, Gastro Epiploic arte...

Gastro Epiploic artery GEA is seldom used now. Patency has been reported as 94 per cent at one year, 88 per cent at five years and 83 per cell1 at ten years. Inferior Epiga

Major organic molecules for living beings, Q. What are the major purposes o...

Q. What are the major purposes of the organic molecules for living beings? Organic molecules, like, lipids, carbohydrates and proteins perform several functions for living orga

Comparative picture of ecosystem, Q. Comparative picture of ecosystem? ...

Q. Comparative picture of ecosystem? An ecosystem having higher diversity means the number of species and interactions between them which constitute the food web, is large. In

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