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 the development of sirs or mods, Explain the Development of SIRS or...

Explain the Development of SIRS or MODS? Multiple hypothesis have been proposed to explain the development of SIRS or MODS. The progression of SIRS to MODS appears to be mediat

Explain risk factors and some epidemiological data, This assignment is a 15...

This assignment is a 1500 word 'clinical update' journal article. The format for this article is similar to that of the 'ANF clinical update' series published in the Australian Nur

Tissue and supporting system., what is the biological significance of the s...

what is the biological significance of the skeleton and supporting system in animals

Aril - seed appendages, Aril - Seed Appendages It is an outgrowth that...

Aril - Seed Appendages It is an outgrowth that arises from the funicle or the testa near the raphe and covers the seed partially or completely. It is often referred to as the

Phloem, why phloem made of living cells

why phloem made of living cells

Calorie requirements for ulcerative colitis, Q. Calorie requirements for ul...

Q. Calorie requirements for ulcerative colitis? Energy: The calorie requirements must be increased to: 1) Restore weight status and maintain ideal weight. 2) Compensate f

The denver development screening test (ddst), THE DENVER DEVELOPMENT SCREEN...

THE DENVER DEVELOPMENT SCREENING TEST (DDST) The Denver Development Screening Test is a standardized test to assess gross motor, fine motor, language and social development

What is passive transport , The passive transport of molecules across a me...

The passive transport of molecules across a membrane does not require an input of metabolic energy. Rate of the diffusion or transport is proportional to the concentration gradient

Explain nongonococcal urethritis, Nongonococcal nonchlamydial urethritis an...

Nongonococcal nonchlamydial urethritis and cervicitis Nongonococcal urethritis (NGU) in men is often nonchlamydial as well. Possibly caused by Ureaplasma urealyticum, Mycoplas

Colluvial-transported soil, Colluvial These are the soils formed from t...

Colluvial These are the soils formed from the material transported by the pull of gravity. Fragments from cliffs or steep rocky slopes become dislodged from time to time and ma

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