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

How have prokaryotic cells give origin to aerobic eukaryotic, How have prok...

How have prokaryotic cells given origin to aerobic eukaryotic cells and to photosynthetic aerobic eukaryotic cells? As per to the most accepted hypothesis aerobic eukaryotic ce

Stress of hospitalization, STRESS OF HOSPITALIZATION   Stress refers to...

STRESS OF HOSPITALIZATION   Stress refers to the imbalance between the environmental  and societal demands and the child's coping abilities  and resources that puts  them in a

Classification of Protozoan parasite , how to make question on classificati...

how to make question on classification of Protozoan parasite

Explain the factor chromosomal inheritance, Explain the factor Chromosomal ...

Explain the factor Chromosomal Inheritance? A huge step forward in our understanding of heredity came in 1902, when a biologist named Walter S. Sutton proposed that Mendel's "f

Galvanotaxis - modes of cell movement, Galvanotaxis - Modes of Cell Movemen...

Galvanotaxis - Modes of Cell Movement Galvanotaxis considers to the movement of cells in response to a potential variation between cells. It is suggested that there are voltag

Water adaptations, Water Adaptations After becoming familiar with the t...

Water Adaptations After becoming familiar with the two kinds of water stresses you would like to know about the adaptations in plants and animals which enable them to survive u

What is the spinal cord, What is the spinal cord? Of which elements is the ...

What is the spinal cord? Of which elements is the spinal cord constituted? The spinal cord is the dorsal neural cord of vertebrates. It is the kind of the central nervous syste

Stereochemistry of amino acids - optical properties, Stereochemistry of Ami...

Stereochemistry of Amino Acids: Optical Properties All  amino acids (except glycine) rotate the plane of polarized light because of  the presence of an asymmetric center at C-2

Explain the term trans fatty acids, Explain the term Trans fatty acids? ...

Explain the term Trans fatty acids? Plant derived fats and oils contain cis-fatty acids. You may recall reading about the cis and trans isomers in the Nutritional Biochemistry

What are the symptoms of mitral stenosis, Q. What are the Symptoms of Mitra...

Q. What are the Symptoms of Mitral stenosis? The cardinal symptom of mitral stenosis is dyspnoea on exertion. Typically it progresses over a period of years. As the severity 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