Reactions carried out by nitrifying microbes include: (i) 2NH3 + 3O2 → 2NO2− + 2H+ + 2H2O (ii) 2NO2− + O2 → 2NO3− Which of the following statements about these equations is NOT true?

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Biology · Mineral Nutrition

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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The bacteria carrying out these steps are usually photoautotrophs

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Answer 1

Step (i) is carried out by Nitrosomonas or Nitrococcus

Answer 2

Step (ii) is carried out by Nitrobacter

Answer 3

Both steps (i) and (ii) constitute nitrification

Answer 4

The bacteria carrying out these steps are usually photoautotrophs

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