The key element in an organic molecule is the element Carbon.
An organic molecule is a macromolecule in which the element carbon is bound with other elements. Carbon is an extremely flexible element that can make bonds with a wide range of other elements.
Organic substances are those that include carbon and may be found in a variety of phases. All of our vital needs are met by organic substances, as is our body. Inorganic compounds, on the other hand, lack the existence of carbon and can only be found in solid form.