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    Biology of Microorganisms
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    Exam 15: Functional Diversity of Microorganisms
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    Nitrogenase Is a Critical Enzyme in the Nitrogen Cycle Because
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Nitrogenase Is a Critical Enzyme in the Nitrogen Cycle Because

Question 15

Question 15

Multiple Choice

Nitrogenase is a critical enzyme in the nitrogen cycle because it catalyzes the


A) assimilation of ammonia.
B) dissimilative reduction of nitrate to nitrogen gas.
C) fixation of nitrogen gas into ammonia.
D) oxidation of nitrogen gas into nitrate.

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