Nitrogen Cycle

Essay specific features

 

Issue:

Science

 

Written by:

David S

 

Date added:

May 25, 2013

 

Level:

University

 

Grade:

A

 

No of pages / words:

2 / 445

 

Was viewed:

3643 times

 

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Essay content:

They incorporate the nitrogen from amino acids and proteins and release the excess nitrogen in the form of ammonium ions. The next part of this cycle is the oxidation of ammonium, also called nitrification. This step takes the nitrogen compound, in this case ammonia, and oxidizes it into nitrite and nitrate...
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This is a two step process first the ammonium is oxidized into nitrite and then the nitrite is oxidized into nitrate. Nitrite is toxic; therefore, nitrate is the form that almost all nitrogen is absorbed by most crop plants grown on dry land. Step 1: 2NH4 (ammonium)+ 3O2 (Oxygen) ??2NO-2(Nitrite) + 4H+ (hydrogen) + 2H2O Step 2: 2NO-2 (Nitrite) + O2 (oxygen) ?? 2NO-3 (nitrate) This process is detrimental because the plant must reduce it back to amino group (ammonium) before it can incorporate it into amino acids, which costs energy...
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