Nitrogen Cycle
What is a reservoir?
A place where anything is kept or stored.
What is a process?
A process is A series of actions that produce something or that lead to a particular result.
What is bacteria?
A living organism that breaks down waste, dead animals, and provides nutrients for plants and animals.
What is lightning?
A source of energy in storms. Breaks N2 molecules apart.
What is excess?
More than needed. Sometimes too much for a human body or a different organism.
What is human impact?
Makes up 78% of the atmosphere.
What is nitrogen.
The place most nitrogen is held.
What is Atmosphere?
Animal's leave this on the ground after they eat. Gets used as fertilizers after decomposers break it down.
What is animal waste?
The animal eats the plants for food.
What is plant consumptions?
N2 in groundwater can lead to cancer in humans, fish-kill events, algal blooms, and changes in species are all what?
N2 atoms combine with oxygen forming what?
What is Nitrogen Oxides?
Plant nutrients are the result of ________________.
What is nitrogen fixation?
Under certain conditions industrial plants combine ________ and _________ from ammonia.
What is nitrogen and hydrogen?
Energy from lightning break apart N2 molecules. N2 atoms combine with oxygen forming nitrogen oxides.
What is Atmospheric Fixation?
Free-Living bacteria that lives in soil and combines N2 and H2. The bacteria fixes 30% N2.
Under certain conditions industrial plants combine nitrogen and hydrogen from ammonia (used as fertilizer).
What is industrial fixation?
Process by where N2 molecules in the air break apart and combine with other atoms to form ammonium.
What is Nitrogen Fixation?
Bacteria that lives in root nodules of pulse family plants.
What us Symbiotic Relationship Bacteria?
Bacteria in the ground combine ammonia with oxygen to form nitrates. Another group of bacteria converts nitrites to nitrates.
What is Nitrification?
Produced when plants take up NH4. Organic compounds- amnio acids, chlorophyll, and nucleic acid.
What is Assimilation?
Part of the decay process. When a plant or animal dies or leaves waste products decomposers like fungi and bacteria turns N2 back into Ammonia.
What is Ammonification
Converts nitrated in the soil to N2. Lives in swampy sediments where O2 is not easily available. Returns nitrogen to the atmosphere to begin the cycle again.
What is Denitrification?
Takes Animal waste and dead plants and makes then into minerals for plants.
What is Decomposition?