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Nitrogen cycle - class-X
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Reaction carried out by $N _2$ fixing microbes include
$2NH _3 + 3O _2 \rightarrow 2NO _2^- + 2H^+ + 2H _2O$ (i)
$2NO _2^- + O _2 \rightarrow 2NO _3^-$ (ii)
Which of the following statements about these equations is not true?
AnswerClick to flip back
A
Bacteria carrying out these steps are usually photoautotrophs.
💡 Explanation:
Phototrophic bacteria are a group of bacteria, whose energy for growth is derived from sunlight and their source of carbon comes from carbon dioxide or organic carbon.
So, the correct option is 'Bacteria carrying out these steps are usually photoautotrophs'.