11th Class Biology Mineral Nutrition In Plants

  • question_answer 21)
    Nitrogen fixation is shown by prokaryotes and not eukaryotes. Comment.  

    Answer:

                      Few prokaryotes like Rhizobium, Anabaena and Nostoc contains the enzyme nitrogenase, needed for the biological nitrogen-fixation. Eukaryotes do not possess this enzyme, therefore are unable to fix nitrogen.


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