Nitrogen Cycle

Front

What is the % of Nitrogen in the air?

Back

78%

Front

Living organisms need Nitrogen to make which of the following? Glucose, Proteins, Sunlight, Ultraviolet Radiation

Back

Proteins

Front

How can Nitrogen gas (N₂) be fixed into a usable form for plants?

Back

Through the action of bacteria and lightning

Front

True or False: Bacteria fix nitrogen from the atmosphere into a form that plants can use.

Back

True

Front

Can animals get the Nitrogen they need directly from the soil bacteria just like plants do?

Back

False

Front

What happens when organisms die and decay?

Back

Their nitrogen returns to the soil

Front

What converts nitrogen gas into a usable form for plants and animals? Options: bacteria, rain, fungi, car exhaust

Back

bacteria

Front

How do animals get the nitrogen they need?

Back

From the food they eat

Front

Organisms that play a role in the nitrogen cycle

Back

plants, animals, & bacteria

Front

Organism that breaks down dead plants & animals and releases nitrogen back into atmosphere

Back

bacteria