Biomolecules:
* Amino acids: The building blocks of proteins. All amino acids contain nitrogen in their amine group (-NH2). Examples include:
* Glycine: The simplest amino acid
* Lysine: An essential amino acid
* Tryptophan: An essential amino acid involved in serotonin production
* Nucleic acids: DNA and RNA, the carriers of genetic information. They contain nitrogenous bases like:
* Adenine (A)
* Guanine (G)
* Cytosine (C)
* Thymine (T) (DNA only)
* Uracil (U) (RNA only)
* Proteins: Long chains of amino acids. Examples include:
* Enzymes: Catalysts for biological reactions
* Antibodies: Proteins involved in the immune system
* Hormones: Chemical messengers
* Nitric Oxide (NO): A signaling molecule in the body with many functions
* Creatine: A molecule found in muscle tissue, involved in energy production
Other Molecules:
* Ammonia (NH3): A colorless gas with a pungent odor, used in fertilizers
* Nitrous Oxide (N2O): A colorless gas with a sweet odor, also known as "laughing gas"
* Nitrogen Dioxide (NO2): A reddish-brown gas, a major air pollutant
* Nitric Acid (HNO3): A strong acid, used in fertilizers and explosives
* Hydrazine (N2H4): A colorless liquid, used as a rocket fuel
* Cyanide (CN-): A highly toxic ion
This is just a small sample of the many molecules that contain nitrogen. Nitrogen is an essential element for life, playing crucial roles in various biological processes and in many industrial applications.