Nitrogen Cycle Flashcard

Front

What percent of the atmosphere is nitrogen?

Back

78%

Front

How does Nitrogen reach soil?

Back

Nitrogen reaches the soil from precipitation.

Front

What helps the process of Nitrogen-Fixation?

Back

Special Bacteria.

Front

What do decomposers do in the nitrogen cycle?

Back

Change decaying matter and waste back into Nitrogen.

Front

Where can you find the special bacteria that helps in Nitrogen-Fixation?

Back

On the roots of plants.

Front

What is Nitrogen-Fixation?

Back

The process of converting nitrogen gas from the atmosphere into ammonia or related compounds in soil.

Front

What role do plants play in the nitrogen cycle?

Back

Plants absorb nitrogen compounds from the soil to grow.

Front

What is the significance of ammonia in the nitrogen cycle?

Back

Ammonia is a form of nitrogen that plants can use.

Front

What is denitrification?

Back

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

Front

What are nitrates?

Back

Nitrates are compounds that contain nitrogen and are used by plants as a nutrient.