D Block Nitrogen Cycle

Front

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

Back

nitrification

Front

Which nitrogen cycle process converts atmospheric nitrogen to a soil form usable by plants?

Back

nitrogen fixation

Front

How much of the atmosphere is composed of nitrogen gas?

Back

78%

Front

Organisms that need nitrogen to survive

Back

all living organisms

Front

If the atmosphere is 78% N₂, why can't we just get our nitrogen by breathing?

Back

We have no mechanism to break the triple bond of nitrogen between the atoms.

Front

Plants and animals cannot use nitrogen directly from the air.

Back

True

Front

What puts nitrogen back into the atmosphere and soil after plants and animals contain it?

Back

decomposition

Front

Nitrification happens in the ______ (Options: Air, Soil, Ground Water, Plants)

Back

Soil

Front

What is true about nutrients in the ecosystem (such as water, carbon, and nitrogen)?

Back

They cycle through the ecosystem in different forms to support life.

Front

Which bacteria remove nitrogen from the atmosphere and convert it into nitrogen containing compounds that plants can use?

Back

nitrogen fixing bacteria