Explain the scanning electron microscope, Biology

Assignment Help:

Explain the Scanning Electron Microscope

It can be used to observe intact cells or cell components directly. Then sections are not necessary. It is used for visualizing surface characteristics rather than intracellular structures. A narrow beam of electrons scan back and forth, producing a three-dimensional image as electrons are reflected off the specimen's surface.

Though a variety of optical instruments are available for routine laboratory work, compound bright field microscope is the one commonly found in all biological laboratories. Let us get to know the different parts of this microscope.


Related Discussions:- Explain the scanning electron microscope

Explain transposition with vsd with restricted pulmonary, Explain transposi...

Explain transposition with VSD with restricted pulmonary? Transposition of great arteries with VSD with restricted pulmonary blood flow: Restriction to pulmonary blood flow

Explain the ph meter - food microbiology, Explain the pH Meter - Food Micro...

Explain the pH Meter - Food Microbiology? pH is a negative logarithm of H+ ion concentration. Its value remains between 0 and 14. Pure water has a pH of 7 (neutral). pH value l

What are the grasslands of north america, What are the grasslands of North ...

What are the grasslands of North America and of South America respectively called? The steppe grasslands of North America are known as prairies. The grasslands of South America

Distinct ecological importance of species, The distinct ecological importan...

The distinct ecological importance of species supports functional diversity and has a direct bearing on the species composition of the site, and therefore on overall biodiversity.

Why is the human placenta referred to as haemochorial type, What is the opt...

What is the optimum percentage of forest area recommended by the national forest policy (1988) for the plains and the hills respectively? List any four problems caused because of d

Major human viral diseases transmitted by mosquitoes, Q. Are there non vira...

Q. Are there non viral hepatitides? The Hepatitis is a generic name for inflammation of the liver and there are bacterial hepatitides, for instance, in lepstopirosis, and toxic

Protoplasmic theory, Protoplasmic Theory The living matter which forms ...

Protoplasmic Theory The living matter which forms the bodies of all living being is a special type of highly organized jelly like viscous semi fluid, and named Sarcode by Dujar

The km for an enzyme is equal to kcat, The Km for an enzyme A. is equal ...

The Km for an enzyme A. is equal to kcat, measured at low substrate concentration. B. is the substrate concentration that gives a velocity that is half the maximum velocity.

Neurons, how does sodium and potassium ions maintain the resting petential ...

how does sodium and potassium ions maintain the resting petential of neurons

Show the artificial keys, Q. Show the Artificial Keys? These are based ...

Q. Show the Artificial Keys? These are based on the resemblances and differences of some prominent characters in the taxa. These are based on the phylogenetic relationship b

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