Identification of Bacteria Production of acetoin can be detected by which of the following tests? Indole test Citrate test Methyl red test Voges-Proskauer test Indole test Citrate test Methyl red test Voges-Proskauer test ANSWER DOWNLOAD EXAMIANS APP
Identification of Bacteria Gram staining was developed accidentally in 1884 by Robert Gram Alexander Fleming Hans Christian Gram Joseph Christian Gram Robert Gram Alexander Fleming Hans Christian Gram Joseph Christian Gram ANSWER DOWNLOAD EXAMIANS APP
Identification of Bacteria What is the colour of gram-negative bacteria on a gram staining? Green Purple Colourless Pink Green Purple Colourless Pink ANSWER DOWNLOAD EXAMIANS APP
Identification of Bacteria Which of the following is commonly used as Gram's decolouriser? Methyl alcohol A mixture of ethyl alcohol and acetone Ethyl alcohol Acetone Methyl alcohol A mixture of ethyl alcohol and acetone Ethyl alcohol Acetone ANSWER DOWNLOAD EXAMIANS APP
Identification of Bacteria What is the order of reagents used in the Gram stain? Crystal violet, safranin, iodine, decolorizer Safranin, crystal violet, decolorizer, iodine Crystal violet, iodine, safranin, decolorizer Crystal violet, iodine, decolorizer, safranin Crystal violet, safranin, iodine, decolorizer Safranin, crystal violet, decolorizer, iodine Crystal violet, iodine, safranin, decolorizer Crystal violet, iodine, decolorizer, safranin ANSWER DOWNLOAD EXAMIANS APP
Identification of Bacteria The production of sufficient acid by fermentation of glucose leads to decrease in pH such that pH of the medium falls below 4.5. Which of the following test can detect it? Citrate utilization test Methyl red test Indole test Voges-Proskauer test Citrate utilization test Methyl red test Indole test Voges-Proskauer test ANSWER DOWNLOAD EXAMIANS APP
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