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

Determine the stages of healing events, Determine the stages of healing eve...

Determine the stages of healing events The healing events are described in 3 stages Stage 1: Wound healing and formation of woven bone (callus) (2 to 6 weeks) Stage 2: La

Control of soil pollution, Following steps must be taken: Domestic an...

Following steps must be taken: Domestic and industrial garbage should be profitably utilized. Compost pits and installation of Gobar-gas plant in rural areas must be encourag

What is enhancers , While  various  positive  control  components  li...

While  various  positive  control  components  lie  close  to the  gene  they  regulate additional can be situated long distances away (sometimes 10-50 kb) either upstream or downs

State the posterior superior alveolar nerve, Posterior superior alveolar ne...

Posterior superior alveolar nerve and vessels It is found in the  posterior aspect of the maxilla running between the bone and the lining of the maxillary sinus may be injured

Distinguish, distinguish between striated and cardic muscles

distinguish between striated and cardic muscles

Determine about the term - copper, Determine about the term - Copper   ...

Determine about the term - Copper   Copper is known to act as an electron carrier in enzymes which bring about oxidation - reduction and regulates respiratory activity in plant

Main manifestations of cholera, Q. What is the etiological agent and the ma...

Q. What is the etiological agent and the main manifestations of cholera? The Cholera is a bacterial disease caused by the Vibrio cholerae. The disease is spread by fecal-oral r

What is the adp phosphorylation, Q. What is the ADP phosphorylation? What r...

Q. What is the ADP phosphorylation? What respectively are oxidative phosphorylation and photophosphorylation? ADP phosphorylation is the addition of one inorganic phosphate in

Find the effective spring constant of the molecule, A Molecule of DNA is 2....

A Molecule of DNA is 2.17 um long. The ends of the molecule become strongly ionixed: negative on one end, positive on the other. The helical molecule acts like a spring and compres

Anatomy, what is the longest cell in human body

what is the longest cell in human body

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