Nitrogen Cycle

Front

Organisms that break down dead plants & animals and release nitrogen back into atmosphere...

Back

bacteria

Front

Organisms that need nitrogen to survive

Back

all living organisms

Front

Can plants and animals use nitrogen directly from the air?

Back

True

Front

After plants and animals contain nitrogen, what puts it back into atmosphere and soil?

Back

decomposition

Front

Based on this diagram, what is the chemical formula for gaseous nitrogen? Options: N, N₂, N₃, N₄

Back

N₂

Front

What happens when organisms die and decay?

Back

Their nitrogen returns to the soil

Front

_____ is the conversion of organic nitrogen into ammonia

Back

Ammonification

Front

According to this diagram, plants use nitrogen to make _________________________

Back

proteins

Front

According to this diagram, animals get proteins from eating ________________________

Back

plants

Front

A correct path that nitrogen could take would be Options: air -> animals -> plants -> bacteria, animals -> air -> bacteria -> plants, bacteria -> air -> plants -> animals, air -> bacteria -> plants -> animals

Back

air -> bacteria -> plants -> animals