WorksheetsMicrobiology Quiz
Total questions: 15
Worksheet time: 8mins
Which method is used for multiplying microbial organisms under controlled laboratory conditions?
Microscopical Examination
Culture
Casein hydrolysis test
Biochemical test
Which type of culture media is used for the production of alpha amylase?
Basic Media
Solid media
Liquid media
Enriched media
What is the color of Bacillus cells with green endospores in the spore staining technique?
Violet
Green
Blue
Red
Which test is used to determine the ability of microorganisms to produce casinase enzyme?
Nitrate Reduction Test
Gelatinase test
Casein hydrolysis test
Amylase test
What is the aim of the Nitrate Reduction Test?
To determine the ability of m.o to produce casinase enzyme
To show the ability of B. subtilis to produce nitrate reductase enzyme
To prevent the colonization of the host by pathogens
To determine the ability of m.o to produce amylase enzyme
Which bacteria shows slow liquefaction in the Gelatinase test?
B. anthracis
Lactobacillus spp.
B. subtilis
Bacillus spp.
What is the color of the media in the Amylase test when Bacillus spp. shows a positive result?
Violet
Green
Blue
Red
Which type of media is De Man, Rogosa and Sharpe (MRS) agar for Lactobacillus?
Semisolid media
Solid media
Liquid media
Selective media
What is the color of Lactobacilli cells in the Gram staining technique?
Violet
Blue
Green
Red
Which test is used to determine the ability of B. subtilis to produce nitrate reductase enzyme?
Gelatinase test
Amylase test
Nitrate Reduction Test
Casein hydrolysis test
What is the result of the Glucose fermentation test (Methyl red test) for Lactobacillus spp.?
Blue color
No gas production
Red color
Green color
Which bacteria shows large, white spreading colonies with irregular edges on nutrient agar?
Staphylococcus aureus
B. anthracis
B. subtilis
Staphylococcus epidermidis
What is the color of Bacillus cells with green endospores in the spore staining technique?
Green
Blue
Violet
Red
Which test is used to determine the ability of microorganisms to produce casinase enzyme?
Casein hydrolysis test
Gelatinase test
Amylase test
Nitrate Reduction Test
What is the aim of the Nitrate Reduction Test?
To prevent the colonization of the host by pathogens
To determine the ability of m.o to produce amylase enzyme
To show the ability of B. subtilis to produce nitrate reductase enzyme
To determine the ability of m.o to produce casinase enzyme
