Organic compounds are a vast class of molecules that contain carbon, almost always bonded to hydrogen, and often containing oxygen, nitrogen, phosphorus, sulfur, and halogens.

Here are some examples of organic compounds:

* Carbohydrates: Sugars, starches, and cellulose

* Lipids: Fats, oils, and waxes

* Proteins: Made up of amino acids, essential for many bodily functions

* Nucleic Acids: DNA and RNA, which carry genetic information

The presence of carbon is what makes these compounds organic, and it's due to carbon's unique ability to form long chains and complex structures.