CHON is a mnemonic acronym for the four most common elements in living organisms: carbon, hydrogen, oxygen, and nitrogen.
The acronym CHNOPS , which stands for c arbon, h ydrogen, n itrogen, o xygen, p phosphorus < i> s ulfur, representing the six most important chemical elements whose covalent combination forms most of the biological molecules on Earth. Sulfur is contained in amino acids cysteine ​​and methionine. Phosphorus is contained in phospholipids, a lipid class that is a major component of all cell membranes, as they can form lipid bilayers, which preserve the ions, proteins, and other molecules in which they are needed for cell function, and prevent them from spreading to areas where they are not should. The phosphate group is also an important component of the nucleic acid backbone and is needed to form ATP - the main molecule used as energy that enables cells in all living things.
Carbon asteroids are rich in CHON elements. This asteroid is the most common type, and often collides with the Earth as a meteorite. Such collisions are very common at the beginning of Earth's history, and these crusher may be very important in the formation of oceans on the planet.
The simplest compound containing all CHON elements is fulminic acid and isocyanic acid (the latter much more stable), having one of each atom.
Video CHON
See also
- The abundance of chemical elements
- Carbon-based life
Maps CHON
References
External links
- "Biosphere Impact on Earth", University of Texas at Dallas
Source of the article : Wikipedia
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