Nitrogen Cycle

Front

What is the nitrogen cycle?

Back

The nitrogen cycle is the process in which nitrogen circulates and is recycled in the environment.

Front

What is a correct path that nitrogen could take in the nitrogen cycle?

Back

Air -> Bacteria -> Plants -> Animals

Front

What do free living bacteria in the soil do?

Back

They turn atmospheric nitrogen into nitrates.

Front

Which organisms need nitrogen to survive?

Back

All living things need nitrogen to survive.

Front

How do animals obtain proteins in the nitrogen cycle?

Back

Animals get proteins from eating plants.

Front

What role do plants play in the nitrogen cycle?

Back

Plants absorb nitrates from the soil, which they use to grow.

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process of converting atmospheric nitrogen into a form that plants can use.

Front

What are nitrates?

Back

Nitrates are compounds that contain nitrogen and are essential for plant growth.

Front

What is the role of decomposers in the nitrogen cycle?

Back

Decomposers break down dead organisms, returning nitrogen to the soil.

Front

What is denitrification?

Back

Denitrification is the process by which bacteria convert nitrates back into atmospheric nitrogen.