| A | B |
|---|
| amino acid | one of 20 kinds of organic compounds that are the monomers of proteins |
| carbohydrate | an energy-rich organic compound made of the elements carbon, hydrogen, and oxygen |
| cellulose | a complex carbohydrate found in plant structures |
| cholesterol | a waxy lipid in animal cells |
| complex carbohydrate | a long chain, or polyer, of simple carbohydrates |
| composite | a combination of two or more substances that creates a new material with different properties |
| DNA | Deoxyribonucleic acid, on type of nucleic acid |
| fatty acid | an organic compound that is a monomer of a fat or oil |
| glucose | a simple carbohydrate; the monomer of many complex carbohydrates |
| hydrocarbon | an organic compound that contains only carbon and hydrogen |
| lipid | an energy-rich organic compound made of carbon, oxygen, and hydrogen. Fats, oils, waxes, and cholesterol are lipids. |
| monomer | one molecule that makes up the links in a polymer chain |
| nucleic acid | a very large organic compound made up of carbon, oxygen, hydrogen, nitrogen, and phosphorus; examples are DNA and RNA |
| nucleotide | an organic compound that is one of the monomers of nucleic acids |
| organic compound | most compounds that contain carbon |
| polymer | a large molecule in which many smaller molecules are bonded together |
| protein | an organic compound that is a polymer of amino acids |
| RNA | ribonucleic acid, a type of nucleic acid |
| starch | a complex carbohydrate in which plants store energy |
| structural formula | a description of a molecule that shows the kind, number, and arrangement of atoms |
