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A: Methyl-red and Voges-Proskauer tests are used to differentiate between certain members of the…
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Q: Why does the nitrate reduction tube turn red after the addition of zinc?
A: Nitrate reduction test is used to find the bacteria who have the ability to reduce the nitrate.
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Q: Why do most iron-oxidizing bacteria grow at anacidic pH?
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Why is sulfate (SO4
2-) added to a Winogradsky column?
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