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Explain Counter Stain - Ziehl-Neelsen Method?
Methylene blue is used to stain previously decolourized cells. All non acid-fast bacteria de-stained by acid alcohol now absorbs counter stain and takes on its blue colour. All acid-fast bacteria remained red in colour due to primary stain.
Genus Mycobacterium shows acid fastness. These are aerobic, slightly curved or straight rods that sometimes branch or form filaments. These filaments readily break down into rods and coccoid bodies, when disturbed. Some grow very slowly. Some are free-living saprophytes and some are pathogens, e.g. M. bovis could cause tuberculosis in cattles, M. tuberculosis causes tuberculosis in humans, M leprae causes leprosy in humans. Acid-fast stain has a diagnostic value in identifying these pathogenic mycobacteria.
Explain Functions of Ascorbic Acid? Vitamin C is easily oxidized, and the majority of its functions in vivo rely on this property. It plays a key role in the body's synthesis o
Q. Energy requirement during congestive cardiac failure? Energy: Composition of the calorie requirements on the basis of body weight is usually not feasible due to the presence
Q. Explain Natural History of Mitral Stenosis ? Untreated, mitral stenosis is a serious disease with observed 10-year mortality of 70-80 per cent in sy
HISTORY ON CLASSIFICATION IN BIOLOGY
expanciate the process of oxygen and carbon dioxide exchange in sponges
explain the role of cyclic photophosphorylation in photosynthesis
What are the two divisions of meiosis? What are the main events that happen in those divisions? Meiosis is divided into first meiotic division, or meiosis I, and second meiotic
Determine about the Klove Grooved Pegboard Test The subject must place pegs shaped like keys into a board having recesses that are oriented in randomly varying directions. The
Define Observation for Benedict Test - Carbohydrates? An insoluble reddish brown precipitate of cuprous oxide will be obtained. This is similar to Fehling's test. The reddis
Q. Medical Therapy for aortic stenosis? Definitive therapy for aortic stenosis is surgical and medical therapy is only palliative. Infective endocarditis and rheumatic fever p
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