Which of the following does not perform nitro | vedclass

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(C) Nitrogen fixation is the process of converting atmospheric nitrogen into ammonia,which is essential for plant growth. $Nostoc$,$Azotobacter$,and $

Vedclass · Accepted Answer

Spirogyra

Vedclass · Answer

(C) Nitrogen fixation is the process of converting atmospheric nitrogen into ammonia,which is essential for plant growth. $Nostoc$,$Azotobacter$,and $Anabaena$ are well-known nitrogen-fixing organisms. $Nostoc$ and $Anabaena$ are cyanobacteria (blue-green algae) that possess specialized cells called heterocysts for nitrogen fixation. $Azotobacter$ is a free-living soil bacterium that also fixes nitrogen. $Spirogyra$ is a filamentous green alga that performs photosynthesis but lacks the ability to fix atmospheric nitrogen. Therefore,the correct answer is $Spirogyra$.

Which of the following does not perform nitrogen fixation?

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