Nitrogen Cycle

The chemical processes by which atmospheric nitrogen is assimilated into organic compounds, especially by certain microorganisms as part of the nitrogen cycle.

• Assimilation

• Nitrogen Fixation

• Ammonification

• Nitrification

• Denitrification

Tags

NGSS.MS-LS2-3

When a plant or animal dies or an animal expels waste, the initial form of nitrogen is organic. Bacteria or fungi convert the organic nitrogen within the remains back into ammonium (NH ⁺ ₄), a process called

• Assimilation

• Nitrogen Fixation

• Ammonification

• Nitrification

• Denitrification

Tags

NGSS.MS-LS2-3

The biological oxidation of ammonia to nitrite followed by the oxidation of the nitrite to nitrate

• Assimilation

• Nitrogen Fixation

• Ammonification

• Nitrification

• Denitrification

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

The process by which plants and animals incorporate the Nitrates and ammonia formed through nitrogen fixation and nitrification. Plants take up these forms of nitrogen through their roots, and incorporate them into plant proteins and nucleic acids

• Assimilation

• Nitrogen Fixation

• Ammonification

• Nitrification

• Denitrification

Tags

NGSS.MS-LS2-3

The reduction of nitrates or nitrites commonly by bacteria (as in soil) that usually results in the escape of nitrogen into the air.

• Assimilation

• Nitrogen Fixation

• Ammonification

• Nitrification

• Denitrification

Tags

NGSS.MS-LS2-3