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 components of second heart sounds, Explain Components of second hea...

Explain Components of second heart sounds? The first component of S 2 is due to closure of aortic valve (A,). The second component is due to closure of pulmonary valve (P 2 ).

What do you mean by high level of behavioral sophistication, Q What are the...

Q What are the few examples of beings of the phylum Arthropoda that present a high level of behavioral sophistication? Insects like some species of wasps, bees, termites and an

Serendipidity, SERENDIPIDIT Y - Sometimes discoveries are made unexpec...

SERENDIPIDIT Y - Sometimes discoveries are made unexpectedly matter of chance. This is serendipidity. Examples - 1.       Structural formula of benzene - It was dreamt by

Altered glucose metabolism - metabolic response to injury, Explain the Alte...

Explain the Altered Glucose Metabolism - Metabolic Response to Injury? Following injury, hypoglycemia commonly occurs and is related to the severity of the stress. In the ebb p

Zoology, Protozoa general characters and classification

Protozoa general characters and classification

Human respiratory system - bronchioles, BRONCHUS - In thorax trachea is...

BRONCHUS - In thorax trachea is devided in to 2 bronchi that enter into lungs of its own side. Rings present in it. BRONCHIOLES - These are branches of bronchus.

State the term - halsted reitan varies, State the term - Halsted Reitan var...

State the term - Halsted Reitan varies with the particular test Scoring for the Halsted Reitan varies with the particular test, such that individual scores may be expressed in

Grouping of stem cells-totipotent scs, Grouping of Stem Cells: The rang...

Grouping of Stem Cells: The range of differentiation “Potency” is an important property of Stem cells & serves as the basis for classifying cells as : Totipotent SCs -capa

Use the relationships for temperature conversions, The °C and °F scales are...

The °C and °F scales are equivalent at only one temperature. That is, x °C = x °F. Use the relationships for temperature conversions to DERIVE (FIND) that temperature. This problem

Plants, information on climbing beans

information on climbing beans

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