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Define Ziehl-Neelsen Staining Technique?
Ziehl-Neelsen staining is used for staining these bacteria. The technique was discovered first by Robert Koch during his pioneering investigations on tuberculosis and was the fore-runner of Ziehl-Neelsen stain used today for diagnosis of these organisms in laboratory. Acid fast bacteria are called so because once these cells get stained with basic fuchsin, these resist decolourization with acid alcohol as can be seen in margin illustiation. This acid fastness red stain is due to high lipid content particularly of mycolic acid in their cell wall. Mycolic acid, is a group of branched chain hydroxyl lipids, which bind covalently to peptidoglycan of cell wall giving the cell surface a waxy, hydrophobic consistency.
The improper handling and transfer of the solid wastes results in various health and environmental hazards, such as: 1. Spoilage of landscape: Municipal wastes heap up o
Explain Basic Stains (Cationic) - Types of Stains? These are chloride or sulfate salts of coloured bases which on ionization give positively charged chromogen. As such, these h
Q. What are the main characteristics of the age pyramids of developed countries? In the stabilized human population the age pyramid has a narrower base since the reproduction r
Define Water - Important Nutrient? Macronutrients, you know, are those nutrients which are required in large amounts by our body namely, carbohydrates, fats and proteins. We st
What are coacervates? Coarcervates are small structures made of the aggregation of organic molecules under water solution. By electrical attraction the molecules join into bigg
the concept that new varieties of organisms are still evolving is best supported by the.......?
Enumerate about the Baule unit A mathematician from Gottingen by the name of B. Baule assisted Mitscherlich with his calculations. The quantity of any growth factor (nutrient
Define the Energy Cost of Growth? The energy cost of growth has two components: 1) The energy needed to synthesize growing tissues; and 2) The energy deposited in these tis
Other Complications : Bioprosthetic valves have a tendency for degeneration, calcification or cusp perforation. Current models have overcome many of these problems. Calcification
Explain the Management of Furcal Perforation 1 st isolate the perforation site. If the perforation is mechanical accidentally occurred: a- It is probably
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