What is impossible if nitrogenase is inactiva | vedclass

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(D) Nitrogenase is a key enzyme responsible for biological nitrogen fixation,which is the process of converting atmospheric $N_2$ into ammonia $(NH_3)

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Conversion of ammonia to nitrate in soil

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(D) Nitrogenase is a key enzyme responsible for biological nitrogen fixation,which is the process of converting atmospheric $N_2$ into ammonia $(NH_3)$.Since leguminous plants rely on this enzyme within their root nodules to fix atmospheric nitrogen,inactivating nitrogenase would make both atmospheric nitrogen fixation and nitrogen fixation by leguminous plants impossible.However,the conversion of ammonia to nitrate in the soil is a process known as nitrification,which is carried out by soil bacteria like $Nitrosomonas$ and $Nitrobacter$,not by the nitrogenase enzyme.Therefore,the process that remains unaffected by the inactivation of nitrogenase is the conversion of ammonia to nitrate in the soil.

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