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

Symptoms and complications of atherosclerosis, Q. Symptoms and Complication...

Q. Symptoms and Complications of atherosclerosis? Symptoms Excessive weight, hypertension, high levels of cholesterol and triglycerides. Complications Myocardia

Hypocoagulation disorder and vitamin k deficiency, Which of the following p...

Which of the following patients likely faces the highest risk of an acquired hypocoagulation disorder and vitamin K deficiency? Answer A. A patient who is immunocompromised as a re

FISHERIES, describe the endoskeleton of fish?

describe the endoskeleton of fish?

Create a standard curve, Explain how you would create a standard curve to d...

Explain how you would create a standard curve to determine the amount of orange dye that had been added to a can of orange soda

Why heartwood differs from sapwood, Heartwood differs from sapwood in: 1...

Heartwood differs from sapwood in: 1. Presence of rays and fibres 2. Absence of vessels and parenchyma 3. Having dead and non-conducting elements 4. Being susceptible t

Matlab, Write up your own Matlab program to do the job described by Show"...

Write up your own Matlab program to do the job described by Show">http://www.avatar.se/molbioinfo2001/dynprog/adv_dynamic.html Show a few examples, your code does work. You wil

What is the coelom, What is the coelom? To which structures do coeloms give...

What is the coelom? To which structures do coeloms give birth? Are all animals coelomate? Coeloms are cavities delimited by mesoderm. Coeloms create the cavities where the inte

What do you mean by handrail support, Many patients who are weak, fearful o...

Many patients who are weak, fearful or shot of breath find it essential to hold tightly to the handrail while walking. If accurate aerobic information is to be obtained handrail su

Natural toxins, Some plants and animals originate food contain toxic substa...

Some plants and animals originate food contain toxic substances. Some pulses and legumes contain a number of toxic substances such as protease inhibitors, lathyrogens, and flavism

Nitrogen cycle, Nitrogen is very important constituents of all organisms li...

Nitrogen is very important constituents of all organisms life  because it forms the structural parth of proteins, nucleic acids and chlorophyll molecules.               Earth 's

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