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

What are analogies for mitochondria, Explain What are analogies for mitocho...

Explain What are analogies for mitochondria? Ans) Well, as we know, the mitochondria are the producers of lots of a cell's energy and the nucleolus makes ribosome's.

Explain the use of enzyme assay, Explain the use of Enzyme assay Enzym...

Explain the use of Enzyme assay Enzyme assay is also used for research into such processes as the browning of plant products which poses problems during value addition. The br

#title.ehr, Why have biologists and bioinformaticians embraced the Web as a...

Why have biologists and bioinformaticians embraced the Web as a vehicle for disseminating data so quickly, whereas clinicians and clinical informaticians have been more hesitant to

Define adsorption chromatography -basic separation technique, Define Adsorp...

Define Adsorption chromatography - Basic Separation Technique? Adsorption is surface interaction and is by number of forces, between surface atoms of solids and molecules of ex

What is the adnexal organ of the digestive system, Q. What is the adnexal o...

Q. What is the adnexal organ of the digestive system in which bile is stored? How does this organ react to the ingestion of fat rich food? Bile is concentrated and stored in th

Disorders of female reproductive system, DISORDER S OF FEMALE REPRODUCTIVE...

DISORDER S OF FEMALE REPRODUCTIVE SYSTEM - (i)         Sterility (ii )     Menstrual irregularity - This may be amenorrhea (absence of M.C.) or excessive bleeding (

Knotted network of capillaries, A knotted network of capillaries within a n...

A knotted network of capillaries within a nephron, the glomerulus, receives arterial blood and is porous enough to allow much of the fluid portion of the blood to flow out of it al

Define important points while working with autoclave, Define Important Poin...

Define Important Points While Working With Autoclave? Note: Following points should be kept in mind while working with autoclave. 1. Autoclave should not be packed tightly o

Define prognosis of eating disorders, Define Prognosis of Eating Disorders?...

Define Prognosis of Eating Disorders? About 50% of the patients recover fully from anorexia nervosa and achieve normal weight, 30% improve but have a partial recovery and 20% w

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