WorksheetsBiochemical Tests Quiz
Total questions: 10
Worksheet time: 5mins
What does the Catalase Test detect?
Catalase enzyme
Cytochrome c oxidase enzyme
Coagulase enzyme
Gelatinase enzyme
What indicates a positive result in the Oxidase Test?
Bubbles appear
Purple color
Clot formation
Gelatin liquefies
What does a positive Coagulase Test indicate?
Clot formation
No clot formation
Gelatin liquefies
Bright pink color
What does the Gelatinase Test check for?
Gelatin liquefies
Clot formation
Bubbles appear
Purple color
What does a positive Urease Test indicate?
Bright pink color
Yellow color remains
Clot formation
No red layer
What does a positive Citrate Test indicate?
Blue color
Green color remains
Red layer at surface
No color change
What does a positive Indole Test indicate?
Red layer at surface
No red layer
Bright pink color
Clot formation
What does the Litmus Milk Test indicate when it turns pink?
Lactose fermentation
Casein coagulation
Litmus reduction
Uninoculated
What does a positive result for sugar fermentation in the TSI Test indicate?
Yellow
Cracks
Black precipitate
No color change
What does the API System use to identify bacteria?
Multiple biochemical tests
Single biochemical test
Visual inspection
Microscopic examination
