Which statement about nitrogen metabolism is true? A) The nitrifiers convert atmospheric nitrogen gas into ammonia (NH₃). B) The nitrifiers return nitrogen to the atmosphere as nitrogen gas (N₂). C) The nitrogen fixers convert ammonia to nitrate or nitrite. D) The denitrifiers convert ammonia to nitrate or nitrite. E) The nitrogen fixers convert atmospheric nitrogen gas into ammonia (NH₃).

Question

Quizplus · Accepted Answer

Nitrogen fixers are bacteria that convert atmospheric nitrogen gas into ammonia. Nitrifiers, on the other hand, convert ammonia into nitrate or nitrite, while denitrifiers convert nitrate or nitrite back into atmospheric nitrogen gas. Therefore, options A, B, C, and D are all incorrect.

Which Statement About Nitrogen Metabolism Is True