Denitrifying Bacteria are Capable of All EXCEPT

Question

Denitrifying bacteria are capable of all EXCEPT: A) reducing NO3− to N2. B) using NO3− as an electron acceptor in their energy-producing pathways. C) oxidizing NH4⁺to NO3−. D) reducing the combined-nitrogen levels. E) being utilized in water treatment plants to reduce nitrogen entering lakes and streams.

Accepted Answer

Denitrifying bacteria are known for their ability to reduce nitrate (NO₃⁻) to nitrogen gas (N₂), not for oxidizing ammonia (NH₄⁺) to nitrate (NO₃⁻), which is a function of nitrifying bacteria.