Define disadvantages of direct microscopic count, Biology

Assignment Help:

Define Disadvantages of Direct Microscopic Count?

1. Small cells are difficult to see under the microscope and may be missed.

2. It gives total count, i.e., both live and dead cells as it is difficult to distinguish between the two.

3.High concentration of microbes, i.e., about 10 million bacteria/ml is required as very small volume of microbes is sampled.The method is not sensitive to populations of fewer than 1 million.

4. Motile cells must be immobilized before counting.

5. Phase contrast microscope is needed for unstained cells.


Related Discussions:- Define disadvantages of direct microscopic count

What are dioxins and why they harmful for food safety, Normal 0 ...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Which glands secrete their product into circulatory system, Name of the duc...

Name of the ductless glands that secrete their product into the circulatory system are: a) Exocrine (pron: ek-seh-kren) b) Apocrine (pron: ap-eh-kren) c) Holocrine (pron:

Principles of bcc, Principles of BCC · BCC should be integrated with p...

Principles of BCC · BCC should be integrated with program goals from the beginning. BCC is a necessary part of diabetes prevention, care and support programs, and providing li

Explain enzyme inhibition, ENZYME INHIBITION Enzymes are often inhibite...

ENZYME INHIBITION Enzymes are often inhibited by  the presence of  suitable inhibitors. Much of current drug therapy  is based  on this. Basically, there  are  three major  cla

Draw a diagram of the longitudinal section, Draw a diagram of the longitudi...

Draw a diagram of the longitudinal section of a mature anatropous ovule and label any ten parts in it.

Explain the nutritional and functional role of magnesium, Minerals :- Magne...

Minerals :- Magnesium    Food Source      Whole grains, nuts, legumes, green leafy vegetables Nutritional Functional role Essential nutrient: Deficiency is rare Co

The oxidative phase generates nadph, 1)  The oxidative phase  generates N...

1)  The oxidative phase  generates NADPH The oxidative branch of  the pathway  generates NADPH  and pentose-5-phosphate, through the following  reactions: a)  Glucose-6-pho

Describe about the term - bacterial infections, Describe about the term - B...

Describe about the term - Bacterial Infections Bacterium is a loose generic name for any microorganism (typically one celled) that has no chlorophyll and multiplies by simple d

Steps for prevention industrial accidents, Steps for Prevention Industrial ...

Steps for Prevention Industrial Accidents These steps are as follow: Substitute a less hazardous equivalent. Remove worker from hazard (e.g. automate the sys

Enzymes, If a person lying quite still why does he or she need energy for?

If a person lying quite still why does he or she need energy for?

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