Explain the gram staining technique, Biology

Assignment Help:

Explain the Gram Staining technique?

Gram staining is a differential staining procedure which divides bacteria into two groups: Gram positive and Gram negative, based on staining properties. The gram stain was developed in 1884 by the Danish Physician, Dr. Christian Gram. It is one of the most important and widely employed staining procedure in bacteriology.

It is very useful and is almost essential in identifying an unknown bacteria. The basis of gram staining is the difference in cell wall composition of two types of bacterial cells. Gram positives have thick cell wall, made up of multi-layered peptidoglycan with extensive cross-linking. On the other hand, gram negative cell wall has a very thin peptidoglycan layer surrounded by outer lipid rich outer membrane. There is no outer membrane in case of gram positives. This difference in cell wall leads to decolourization of gram negatives but not gram positives by decolourizing agent i.e., ethanol or acetone.


Related Discussions:- Explain the gram staining technique

Define the dietary management for underweight, Define the Dietary Managemen...

Define the Dietary Management for Underweight? We just read about the etiological factors that may lead to undernutritioin and weight loss. Whatever may be the cause, all under

How ph affect the initial rate of an enzyme, How does pH affect the initial...

How does pH affect the initial rate of an enzyme -catalyzed reaction?

Palaeontological evidence of evolution, EVIDENCES OF EVOLUTION - The ev...

EVIDENCES OF EVOLUTION - The evidences of organic evolution derived from many lines of study indicate that present day forms have arisen by gradual changes from pre existing fo

Explain cytoskeleton, What is cytoskeleton? What are its main constituents ...

What is cytoskeleton? What are its main constituents in animal cells? Ans) Cytoskeleton is the cytoplasmic structure that handles the cell, keeps its shape and fixates and moves

Define the unicellular organisms, Another possible way to classify organism...

Another possible way to classify organisms would be to separate them into unicellular and multicellular organisms. Explain why this is not a useful classification system. Other

Explain caspofungin, Explain Caspofungin It is available only for intra...

Explain Caspofungin It is available only for intravenous administration and is FDA-approved for treatment of esophageal candidiasis, candidemia, and intra-abdominal abscesses,

Maternity and child health & family planning, M A TERNIT Y AND CHILD HEA...

M A TERNIT Y AND CHILD HEALTH & FAMILY PLANNING - 1.       The health centers give necessary information, guidance & assistance to mother before & after delivery pregnant wo

Difference between vegetative and generative cell , Difference between Vege...

Difference between Vegetative and Generative Cell The cytoplasm of the vegetative cell and the generative cell is distinctly different. The generative cell is transparent and

How long do flowers usually last, How long do flowers usually last? Som...

How long do flowers usually last? Some flowers, like Bachelors Buttons, Zinnias, Marigolds, and Petunias last pretty much from the time they begin blooming until frost. Others,

Enumerate the advantages of implant supported prosthesis, Q. Enumerate the ...

Q. Enumerate the advantages of implant supported prosthesis over a removable one Removable soft tissue-borne partial dentures have one of the lowest patient acceptance rates in

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