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Explain the Indole Production Test?
Many microorganisms produce an enzyme tryptophanase which oxidizes amino acid tryptophan to produce pyruvic acid, indole and ammonia. We can analyze the production of tryptophanase by using SIM agar containing tryptophan. The presence of indole is then detected by adding Kovac's reagent which contains p-dimethyl amino benzaldehyde, butanol and hydrochloric acid. It produces a cherry-red reagent layer with indole (positive test).The role of acidified butyl alcohol is to extract the indole into the reagent layer which then react with dimethyl amino benzaldehyde.
Explain which is better to grow plants in Rock sand or soil? Ans) When we grew plants inside, with no wind, and the plants in the rocks grew superior to the plants that were gr
Effects of Cardiogenic Pulmonary Edema Interference with oxygen transfer in the lungs Depression arterial oxygen tension Sense of suffocation and oppression in the
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Why is the skin on worms, the gills in fish, and the lungs in humans good epithelial surfaces for respiration. Be specific.
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