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The first stable product of fixation of ...

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

A

Glutamate

B

`NO_2^(-)`

C

Ammonia

D

`NO_3^(-)`

Text Solution

Verified by Experts

The correct Answer is:
B
The ammonia formed is converted into nitrate by the soil microbes. This phenomenon of conversion of ammonia to nitrate is called nitrification. It is performed in two steps:
(i) In the first step, ammonia is oxidized to nitrites by the action of Nitrosomonas and Nitrococcus bacteria

(ii) In the second step, nitrite is further oxidized to nitrate with the help of Nitrobacter and or Nitrocystics
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