Why Cyanobacteria uses 'light and dark cycle' to prevent oxygen inhibition on nitrogen fixation? please explain it...

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Biology

Why Cyanobacteria uses 'light and dark cycle' to prevent oxygeninhibition on nitrogen fixation?

please explain it in detail using the below reactionequation.

N2+8H+8e+16ATP-> 2NH3+H2+16ATP

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Answer Under the lightdark rule the most heterocystic strainmentioned so far ideally fixes the nitrogen in the sun Naturalblooms often dominated by heterocystic cyanobacteria demonstratehigher production of nitrogenase in the light than in the darkLowproduction of nitrogenase in the dark has been due to the failureof metabolism to generate reductive substances adequately underthese conditions In many ways this modification is similar to theADPribosylation of    See Answer
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