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.
