Proteins, nucleic acids and other nitrogenous compounds

Although N2 molecules are relatively unreactive, nature provides mechanisms by which N atoms are incorporated into proteins, nucleic acids, and other nitrogenous compounds. The nitrogen cycle is the complex series of reactions by which nitrogen is slowly but continually recycled in the atmosphere (our nitrogen reservoir), lithosphere (earth), and hydrosphere (water). 

Proteins, nucleic acids and other nitrogenous compounds... 

Although N2 molecules are relatively unreactive, nature provides mechanisms by which N atoms are incorporated into proteins, nucleic acids, and other nitrogenous compounds. 

Arts. From only 20 amino acids and eight nitrogen bases, cells have been able to create extraordinarily large numbers of different proteins, nucleic acids, and other compounds necessary to carry out metabolism and the specific functions of specialized tissues and organs such as the brain, kidney,... 

Nitrogen has a major role in the metabolic and structural aspects of all species. Nitrogen can be found, not only in amino acids, but in proteins, nucleic acids, nucleotides, hormones, and many other critical biological compounds. 

Amino acids and other soluble nitrogenous compounds play essential roles in plant metabolism, being the primary products of inorganic nitrogen assimilation and precursors of proteins and nucleic acids. It is hardly surprising that, because of the importance of soluble nitrogenous compounds, there has been much interest in the influence of environmental stress on their metabolism. Moreover there is evidence, albeit largely circumstantial, which implicates some of these compounds in either susceptibility or resistance to particular environmental stresses. 

I our body contains over 1 kg of nitrogen, mainly in the proteins and nucleic acids that make up your cells. Your body, however, cannot absorb nitrogen directly from the atmosphere. You get the nitrogen-containing compounds you need by eating plants and other foods. 

Biomolecules are molecules found in living things. The major classes of biomolecules are proteins, carbohydrates, fats, and nucleic acids. All biomolecules contain carbon, hydrogen, and oxygen. Proteins also contain nitrogen and sometimes sulfur, and nucleic acids contain nitrogen and phosphorus. Other types of atoms may also be found in these compounds. 

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