Q35 · CSIR NET Chemistry, December 2011
Paper: CSIR NET December 2011 · Subject: Inorganic Chemistry · Chapter: Bioinorganic Chemistry · Topic: Nitrogen Fixation · Marks: 2 · Difficulty: Easy
The reduction of nitrogen to ammonia, carried out by the enzyme nitrogenase, needs,
(a)2 electrons
(b)4 electrons
(c)6 electrons
(d)8 elecrons
Answer
Answer: D ✓ checked by 4AB · confidence high
Explanation
N₂ + 8H⁺ + 8e⁻ + 16ATP → 2NH₃ + H₂: nitrogenase uses eight electrons (six for N₂, two for the obligatory H₂).
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