Nitrogen Fixation

Multiple Choice

Nitrogen fixation:

A) is necessary for the electron-transport chain because nitrogen acts as the final electron acceptor.
B) incorporates molecular nitrogen (N₂) taken from the air into amino acids and nucleotides.
C) releases N₂ gas to the atmosphere.
D) converts N₂ to ammonia, making it available for incorporation into amino acids and nucleotides.
E) is performed by biochemical pathways in the plant cells.