Def
Nitrogen Fixation
atmospheric nitrogen is converted to forms that producers can use
What is carried out by the image below?
Abiotic Nitrogen Fixation
Biotic Nitrogen Fixation
Produces ammonia. Carried out by cyanobacteria and some bacteria associated with plant roots.
bacteria and fungi break down the organic nitrogen in dead plants, dead animals, and animal waste (like proteins and urea) and convert it into ammonia (NH₃) or ammonium (NH₄⁺) in the soil
Ammonification/Mineralization
A bacteria that carries out Biotic Nitrogen Fixation
Produces nitrates.
Abiotic Nitrogen Fixation
Denitification
bacteria convert nitrates into nitrogen gas and release it into the atmosphere
What step of the nitrogen cycle is the image below?
Denitrification
Human impacts
Leaching and Fertilizer
Nitrifying bacteria convert ammonium into nitrate and then into nitrate
Nitrification
What step of the nitrogen cycle is below?
Nitrification
Dissolved molecules are transported through the soil via groundwater (transports nitrate)
Leaching
Assimilation
Producers take up either ammonium, nitrite, or nitrate. Consumers take up nitrogen by eating producers.
What is this?
The Nitrogen Cycle
What causes nitrogen in soil to be higher, causing atmospheric nitrogen concentrations to be higher
Fertilizers