Which statement concerning nitrogen cycling is false?
A) Prokaryotic nitrogen fixers play a major role in nitrogen cycling in the world's ecosystems.
B) Denitrifiers convert nitrate ions into nitrogen gas, which is released into the atmosphere.
C) Without denitrification, nitrogen would leach from the soil into lakes and rivers.
D) Nitrogen fixers convert atmospheric nitrogen gas into a usable chemical form (ammonia).
E) Nitrate is oxidized to ammonia in soil and in seawater by chemoautotrophic bacteria called nitrifiers.

Question

Quizplus · Accepted Answer

Nitrifiers actually convert ammonia into nitrate, not the other way around. This process is part of the nitrification step in the nitrogen cycle, where ammonia is first oxidized to nitrite and then to nitrate.

Which Statement Concerning Nitrogen Cycling Is False