The Nitrogen Cycle

Front

How do animals get the nitrogen they need?

Back

From the food they eat.

Front

Organisms that need nitrogen to survive

Back

all living organisms

Front

Organisms that play a role in the nitrogen cycle

Back

plants, animals, & bacteria

Front

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

Back

through action of bacteria & lightning

Front

How do plants get the nitrogen they need?

Back

From the soil or water in which they live.

Front

What % of the air is made of nitrogen?

Back

78%

Front

What can transform nitrogen in the atmosphere into a usable form of nitrogen?

Back

lightning

Front

What is the role of denitrifying bacteria?

Back

Change nitrate back into nitrogen gas.

Front

What is the role of decomposing bacteria in the nitrogen cycle?

Back

Return the nitrogen compounds to the soil

Front

We need nitrogen to make: Proteins, DNA, ATP, all of these

Back

all of these