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Step 1: Nitrogen-fixation
Atmospheric: Happens when Nitrogen (N2) is oxidized at high temperatures (by lightning, in internal combustion engines) to make nitrite (NO2). This can combine with water to form nitric acid (H2NO3), which is deposited on earth through rainfall.
Biological: Done by bacteria which can convert N2 into ammonia (NH3) if an energy source is present. Some get this energy by directly absorbing sunlight (blue-green algae) or by living in the roots of plants (legumes, alder trees), who provide them with food (Rhizobium, Azospirillium).
Step 2: Conversion to Ammonia. As amino acids and nucleic acids require N in the form of Ammonia, if nitrate (NO3) present, it must be converted to NH3. This is done through Nitrate reductase enzymes.
Step 3: Biological Use. Ammonia is incorporated into proteins, nucleic acids
Step 4: When organism dies, ammonia is relased back into the biosphere through the process of Ammonification, in which water is added to proteins to make carbon dioxide and ammonia. This process happens during digestion, and is also done by bacterial and fungal decomposers.
Step 5: If ammonia released into oxygen rich (anerobic) soil, other bacteria can convert it into nitrite or nitrate through the process of Nitrification:
NH4+ + 2O2 = NO3- + H2O + 2H.
This is a problem, as it gives the molecule which contains Nitrogen a negative charge, which repels it from soil particles, causing it to be easily leached into streams and groundwater.
Step 6: If soils remain anerobic, another group of poop will convert it back into inert, atmospheric N2 through the process of Denitrification. In this process, bacteria use nitrate as an Oxygen source for respiration: C6H12O6 + 4NO3- = 6CO2 + 6H2O + 2N2
AND THE SPACE UNICORN WILL SAVE US ALL!! XD
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How do plants transfer nitrogen in the nitrogen cycle?
Plants transfer nitrogen in the nitrogen cycle through assimilation.
Is the first step of the nitrogen cycle?
The first step of the nitrogen cycle is nitrogen fixation.
What does the nitrogen cycle include?
the nitrogen cycle in cludes gas
What cycle depends on the bacteria in these nodules?
Then cycle that depends on bacteria to convert nitrogen gas into ammonia is the nitrogen cycle. This is the part of the cycle called nitrogen fixation.
What are the major parts in the nitrogen cycle?
Nitrogen is the main components of the cycle.
What are the steps in nitrogen cycle?
nitrogen fixation, denitrification, nitrification, amonification are the for steps of the nitrogen cycle.
Outline the major steps in the nitrogen cycle?
The major steps in the nitrogen cycle: nitrogen moves from the air to the soil, into living things, and back into the air
Outline the major steps in the nitrogyn cycle?
The major steps in the nitrogen cycle: nitrogen moves from the air to the soil, into living things, and back into the air.
Has five steps nitrogen fixation nitrification assimilation ammonification and denitrification?
The Nitrogen Cycle has five steps which include; Nitrogen Fixation, Nitrification, Assimilation, Ammonification, and Denitrification.
Livestock farming creates large amounts of animal waste How would this affect the nitrogen cycle?
this is a very hard question i don't even know we are learning this in 8th grade too
Soil bacteria are responsible for carrying many steps in the nitrogen cycle. Soil bacteria are NOT responsible for?
Assimilation
Is exhausted in the carbon or nitrogen cycle?
it is in the nitrogen cycle
How many steps are there in the system development life cycle?
6
How do plants transfer nitrogen in the nitrogen cycle?
Plants transfer nitrogen in the nitrogen cycle through assimilation.
Decaying plants add nitrogen to the soil is called?
the nitrogen cycle
What is the first step of the nitrogen cycle?
The first step of the nitrogen cycle is nitrogen fixation.
Is the first step of the nitrogen cycle?
The first step of the nitrogen cycle is nitrogen fixation.
