Ammonia formation from free N2 cannot be done without the help of
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MO-Fe protein is required for ammonia formation from free N₂ .
Explanation:
- Fixation of nitrogen is done with the help of enzyme nitrogenase, which functions under anaerobic conditions.
- The enzyme nitrogenase consists of two sub-units , a non-haeme iron protein commonly called Fe protein called Mo-Fe protein (dinitrogenase)
- Ammonia synthesis by nitrogenase requires a very high input of energy, 8 ATP for each NH₃ produced, which comes through respiration.
- Ammonia first stable product formed in N2 fixation so formed is used for the synthesis of amino acids.
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