The first stable product of fixation of atmospheric nitrogen in leguminous plants is

NO₂^-

ammonia

NO₃^-

glutamate

Solution

ammonia

The process of conversion of nitrogen (N₂) to ammonia is termed as nitrogen fixation.

(Nitrogen) N₂_$\to$(Dimide) N₂H₂ $\to$ (Hydrazine) N₂H₄ $\to$ (Ammonia) 2NH₃

2NH₃ + 3O₂ $\to$ 2NO^-₂ + 2H⁺ + 2H₂O

2NO₂ + O₂ $\to$ 2NO^-₃

In reductive animation ammonia reacts with $α$ -ketoglutaric acid and forms glutamic acid

$α$ - ketoglutaric acid + NH⁺₄ + NADPH $\to_{Dehydrogenase}^{Glutamate}$ Glutamate + H₂O + NADP

Some More Questions From Mineral Nutrition Chapter

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