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Exercise 39 Pre Quiz
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1The growth an organism exhibits on nutrient agar in an anaerobe jar, falls into which general category of bacterial identification?
A)Morphological characteristics
B)Cultural characteristics
C)Biochemical and physiological assays



2A staphylococcus culture tests negative for catalase. This result is a___________.
A)false-positive result
B)false-negative result



3Which of the following tests should you perform if you are concerned that your culture is no longer pure?
A)Gram stain
B)Endospore stain
C)Vogues-Proskauer test
D)Growth on mannitol salt agar



4A positive result for any test run in this exercise means that _______ or more strains test positive, not every last one.
A)50%
B)75%
C)90%
D)99%



5Which of the following diseases was not discovered in the last 35 years?
A)Legionnaires’ disease
B)HIV/AIDS
C)SARS
D)Listeria
E)Bird flu







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