MEDICAL ANIMATION TRANSCRIPT: Organic molecules are compounds found in, or produced by living things. Each molecule contains two or more elements, including carbon. Carbon has four valence electrons and is able to bond with other elements that can contribute another four electrons to complete its outer shell. Carbon atoms can form long chains, or carbon backbones as a base for a variety of organic molecules. Carbon's ability to bond with itself and other elements, allow it to form complex molecules necessary for life, such as carbohydrates, proteins, lipids, and nucleic acids. Carbohydrates are organic molecules made up of carbon, hydrogen, and oxygen. Carbohydrates have a two to one ratio of hydrogen to carbon and oxygen. For example, glucose has 12 hydrogen atoms, six carbon atoms, and six oxygen atoms. Carbohydrates are important energy sources for cells. Proteins are chains of amino acids. All amino acids consist of a central carbon atom connected to a hydrogen atom, an amino group...