Micro Exp 15 Questions and Answers Latest Update

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Micro Exp 15 Questions and Answers Latest
Update

Question asked with Test: Does the organism have the enzyme catalase?

Key Ingredients: hydrogen peroxide

Data: bubbles

Conclusions: The organism has catalase. Ans: Catalase Test (+)

Question asked with test: Does the organism have the enzyme catalase?

Key Ingredients: hydrogen peroxide

Data: no bubbles

Conclusions: The organism does not have catalase. Ans: Catalase Test (-)

Question asked with test: Does the organism have the enzyme coagulase?

Key Ingredients: rabbit serum

Data: serum turns solid

Conclusions: The organism has coagulase. Ans: Coagulase Test (+)

Question asked with test: Does the organism have the enzyme coagulase?

Key Ingredients: rabbit serum



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Data: serum stays liquid

Conclusions: The organism does not have coagulase. Ans: Coagulase Test (-)

Question asked with test: Can the organism hydrolyze esculin?

Key Ingredients: esculin & ferric citrate

Data: medium turns black

Conclusions: The organism can hydrolyze esculin. Ans: Esculin Hydrolysis
(+)

Question asked with test: Can the organism hydrolyze esculin?

Key Ingredients: esculin & ferric citrate

Data: medium stays brown

Conclusions: The organism cannot hydrolyze esculin. Ans: Esculin
Hydrolysis (-)

Question asked with test: Can the organism destroy red blood cells?

Key Ingredients: Whole blood

Data: medium around colonies is clear or yellowish

Conclusions: beta-hemolysis: the organism can completely destroy RBCs
Ans: Hemolysis (beta)

Question asked with test: Can the organism destroy red blood cells?

Key Ingredients: Whole blood

Data: medium around colonies is greenish


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