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Explain the Primary Stain - Ziehl-Neelsen Method?
Ordinary aqueous stains like methylene blue, crystal violet, etc. are not able to stain most of the species of Mycobacteria. Carbol fuchsin, a red mixture of basic fuchsin and phenol can be used for staining these bacteria. Basic fuchsin, binds to carboxylic acid group of mycolic acid and phenol enhances penetration of basic fuchsin into lipid. Penetration is further enhanced by slow heating to steaming for 2-3 minutes. This drives the stain inside the cytoplasm. In modified Ziehl-Neelsen method, instead of heating, a wetting agent - Turgitol - can be added to the stain. This agent reduces surface tension between the cell wall of the mycobacteria and the stain. After staining, all cells become red.
Define the Elimination of Vitamin E? The primary oxidation product of α-tocopherol is α-tocophery quinone that can be conjugated to yield the glucuronate. This glucnronide is e
How does the sodium-potassium pump present in the cell membrane work? What is the importance of this protein for the cell? The sodium-potassium pump is the transport protein th
where we find annelid
What is meant when it is said that a virus is in an inactive state? Viruses considered in inactive state are those whose genetic material is within host cells without synthesis
Compare between ISP and soy flour The cost of isolated soybean proteins is five to seven times higher than that of defatted soy flour. On an equivalent protein weight basis, th
The article entitled "Life on Earth" is trying to make the point that RNA likely included before DNA. Forthis article which of the following is false? A. Chains of RNA nucleoti
There is a lot of dataset and hypothese that attempt to explain why there was a Cambrian Explosion. Using all supporting ideas, explain and write a paragraph on why all this specia
Define Surgical Procedures for Cancer Patient Major resection of the small bowel is not common. Resection of the ileum leads to certain physiological and nutritional problems.
Q. Why is it said that during photosynthesis carbon dioxide is improved to form glucose? During photosynthesis carbon dioxide is energetically improve with hydrogen from water.
Which statement best describes the acid/base properties of guanine? -at pH, guanine will be negatively charge -at pH, guanine will be neutral -it will be an effective buff
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