Mineral Nutrition Question 36

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

[NEET 2013]

(a) Ammonia

(b) $NO_3^{-}$

(c) Glutamate

(d) $NO_2^{-}$

Show Answer

Answer : a

Hints & Solution

(a) Ammonia is the first stable compound produced in fixation of atmospheric nitrogen in leguminous plant. A molecule of nitrogen is changed into two molecules of ammonia. It requires $16 ATP$, a source of electron donor ferredoxin, hydrogen donor NADPH or FMNH2 and dinitrogenase enzyme.



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