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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.
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What is osseointegration The smaller the devital zone that forms around the implant subsequent to the surgical trauma, the more likely rigid fixation will occur. The aim is to
what is the longest cell in human body
Q. Definition of Osseointegration From the view of the patient? An implant fixture is osseointegrated if it provides a stable and apparently immobile support of a prosthesis un
Starting from a ribosome in the cytosol, list in sequential order the organelles and cellular components a secreted protein would encounter from translation to secretion.
What are the major terrestrial biomes? The main terrestrial biomes are: tundra, taigas (or boreal forest), temperate forests, tropical forests, grasslands and deserts.
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