Nitrogen Cycle

Front

Which nitrogen cycle process is occurring when bacteria convert ammonium to nitrite and then into nitrate?

Back

nitrification

Front

What converts nitrogen gas into a usable form for plants and animals?

Back

bacteria

Front

The process in which nitrogen circulates and is recycled is called

Back

The nitrogen cycle

Front

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

Back

Through action of bacteria and lightning

Front

How do animals get the nitrogen they need?

Back

From the food they eat

Front

What is the formula for atmospheric nitrogen? Options: N, N₂, NH₃, NO₃

Back

N₂

Front

Bacteria fix nitrogen from the atmosphere into a form plants can use.

Back

True

Front

What is a correct path that nitrogen could take? Options: air -> animals -> plants -> bacteria, animals -> air -> bacteria -> plants, bacteria -> air -> plants -> animals, air -> bacteria -> plants -> animals

Back

air -> bacteria -> plants -> animals

Front

Do all plants have nitrogen fixing bacteria in their roots?

Back

False

Front

What % of the air is made of nitrogen?

Back

78%