Identification of Bacteria What is the colour of gram-negative bacteria on a gram staining? Pink Green Purple Colourless Pink Green Purple Colourless ANSWER DOWNLOAD EXAMIANS APP
Identification of Bacteria The primary stain of Gram's method is crystal violet phenolpthalene safranin methyl red crystal violet phenolpthalene safranin methyl red 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 Acetone Ethyl alcohol Methyl alcohol A mixture of ethyl alcohol and acetone Acetone Ethyl alcohol 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? Indole test Methyl red test Citrate utilization test Voges-Proskauer test Indole test Methyl red test Citrate utilization test Voges-Proskauer test ANSWER DOWNLOAD EXAMIANS APP
Identification of Bacteria Which of the following shows a positive urease test? Both (a) and (b) Klebsiella None of these Proteus Both (a) and (b) Klebsiella None of these Proteus ANSWER DOWNLOAD EXAMIANS APP
Identification of Bacteria What is the colour of gram -postive bacteria on a gram staining? Pink Purple Green Colourless Pink Purple Green Colourless ANSWER DOWNLOAD EXAMIANS APP
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