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

Nutrition, define alimentary canal

define alimentary canal

Respiratory protection - azotobacter, Respiratory Protection - Azotobacter ...

Respiratory Protection - Azotobacter In respiratory protection N 2 -fixing cells adjust the rate of .aerobic respiration according to prevailing oxygen tension i.e. rising and

Ecological significance - conservation of wildlife, Ecological Significance...

Ecological Significance - Conservation of Wildlife  Besides serving as a valuable genetic reservoir, each species interacts with other species and plays a role in the transfe

Nitrogen cycle, Nitrogen Cycle The nitrogen is an essential constituen...

Nitrogen Cycle The nitrogen is an essential constituent of protein - the building block of all living cells. It is also a major constituent of the atmosphere (79 per cent). Al

Why does geographical isolation lead to speciation?, Why does geographical ...

Why does geographical isolation lead to speciation? The Geographical isolation between groups of the same species leads to formation of a new species since it disallows crossin

Jaundice (icterus), Jaundice (Icterus) Jaundice is classified as pre-he...

Jaundice (Icterus) Jaundice is classified as pre-hepatic (hemolytic), hepatic and post-hepatic (obstructive) depending on origin of the problem, and is characterized by yellowi

Nocardiosis, Nocardiosis Nocardiae are aerobic, saprophytic, gram-posi...

Nocardiosis Nocardiae are aerobic, saprophytic, gram-positive, partially acid-fast filamentous bacteria. Currently, there are 30 species included within the genus. Members of

Determine the testing for albumin in urine, Determine the Testing for Album...

Determine the Testing for Albumin in Urine Acetic Acid Test About 2 - 8 mgm/dl of protein is excreted in urine which is not usually detected by routine test. The testing o

Food processing and preservation, various changes that occur during concent...

various changes that occur during concentration of food

What physical fitness tests examine, What Physical fitness tests examine? ...

What Physical fitness tests examine? Physical fitness tests examine the components of physical fitness such as endurance, speed, strength, flexibility and body composition. The

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