Aspen Institute. The Aspen Institute is an international nonprofit organization founded in 1950 as the Aspen Institute of Humanistic Studies. The organization is dedicated to fostering enlightened leadership, the appreciation of timeless ideas and values, and open-minded dialogue on contemporary issues.
Nitrogen occurs in all organisms, primarily in amino acids (and thus proteins), in the nucleic acids (DNA and RNA) and in the energy transfer molecule adenosine triphosphate. The human body contains about 3% by mass of nitrogen, the fourth most abundant element in the body after oxygen, carbon, and hydrogen.
Organic compounds are said to be the ones that contain a carbon-hydrogen bond. Most of the inorganic compounds do not contain carbon. There are many exceptions to this definition in the case of both organic and inorganic compounds. Organic substances include nucleic acids, fats, sugars, proteins, enzymes and fuels. All these substances include a carbon-hydrogen bond.