The Nitrogen Cycle

Front

What is the formula for atmospheric nitrogen?

Back

N₂

Front

How is nitrogen 'fixed' into a usable form for plants?

Back

Through the action of bacteria & lightning.

Front

In the nitrogen cycle, what does nitrogen in the atmosphere represent?

Back

Label A in the nitrogen cycle diagram.

Front

What is a correct path that nitrogen could take?

Back

Air -> Bacteria -> Plants -> Animals.

Front

What is the role of bacteria in the nitrogen cycle?

Back

Bacteria convert atmospheric nitrogen into a form that plants can use.

Front

What is nitrogen fixation?

Back

The process of converting nitrogen gas (N₂) into ammonia (NH₃) or related compounds.

Front

What is denitrification?

Back

The process by which bacteria convert nitrates back into nitrogen gas (N₂), returning it to the atmosphere.

Front

What is the importance of the nitrogen cycle?

Back

It recycles nitrogen in various forms, making it available for living organisms.

Front

What are nitrates?

Back

Compounds that contain nitrogen and oxygen, which are used by plants.

Front

What is ammonification?

Back

The process of converting organic nitrogen from dead organisms into ammonia.