What two metabolic pathways that produce

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1. In the nitrate reduction test, what 3 possible outcomes for nitrate reduction are tested

2. Why might a Durham tube be used in the nitrate reduction tube (what does it indicate

3. How do chemoheterotrophs use nitrate in their metabolism?

4. What two metabolic pathways that produce H2S?

5. What does the production of a black precipitate indicate and how was the precipitate formed in SIM media?

6. Why does SIM medium have a low agar concentration?

7. Explain how an aerobe can produce H2S.

Reference no: EM132322171

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