Explain acidic stains (anionic) - types of stains, Biology

Assignment Help:

Explain Acidic Stains (anionic) - Types of Stains?

These are sodium, potassium, calcium or ammonium salts of coloured acids, which on ionization give negatively charged chromogen. These are best under acidic conditions. Most acidic dyes are unable to bind to the cell surface and also not able to penetrate into the cell because of repulsion by cell surface. These possess negatively charged groups, like, carboxyl (- COOH), phenolic, hydroxyl (-OH) so have a strong affinity to positively charged cell structure and macromolecules, like proteins. Example: Eosin, Picric Acid, Rose Bengal, Acid Fuchsin etc.


Related Discussions:- Explain acidic stains (anionic) - types of stains

Define clinical assessment for vitamin a, Define Clinical Assessment For Vi...

Define Clinical Assessment For Vitamin A? Clinical features of deficiency occur as ocular and extra ocular lesions. Ocular lesions affect the posterior segment of the eye init

Social determinants of health - social exclusion, Social Determinants of He...

Social Determinants of Health - Social Exclusion Given that absolute poverty is a major determinant of ill-health, the resultant social exclusion is ‘psychologically damaging,

What gases was the earth''s primitive atmosphere constituted, Before the em...

Before the emergence of life of what gases was the earth's primitive atmosphere constituted? The earth's primitive atmosphere was fundamentally formed of methane, hydrogen, amm

Name some emulsifiers which are present in nature, Name some emulsifiers wh...

Name some emulsifiers which are present in nature? There are many emulsifiers which are present in nature such as phospholipids e.g. lectin which is present in egg yolk which a

Male accessory sex organs, Normal 0 false false false E...

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

Explain the term antioxidants, Normal 0 false false false ...

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

Explain the diarrhoeal management strategies, Explain the Diarrhoeal Manage...

Explain the Diarrhoeal Management Strategies? The diarrhoeal management strategies have had a major impact on less than 5 mortality rate. The distribution of ORS packets and ne

What is cellular respiration, What is Cellular Respiration? Cellular R...

What is Cellular Respiration? Cellular Respiration : The most important of the metabolic processes, cellular respiration, provides energy for most chemical reactions in an or

What is tree girdling, What is tree girdling? What happens to a plant when ...

What is tree girdling? What happens to a plant when that girdle is removed from the stem (below the branches)? Malpighi's girdling, or tree girdling, is the removal from a ste

Fats requirements during congestive cardiac failure, Q. Fats requirements d...

Q. Fats requirements during congestive cardiac failure? Fat: The quantity and quality of fat would be governed by the severity of hyper- lipidemia and adiposity. Emphasis, as

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