Organic Molecules

Organic molecules are carbon-based molecules that are essential to the functioning of living organisms. The main groups of organic molecules are carbohydrates, lipids, proteins, and nucleic acids. Together these molecules create the diversity of life on Earth.

Extend Your Learning

You can explore more about macromolecules, and view pictures of their structures by visiting the National Institutes of Health website and reading an excerpt from The Molecular Composition of Cells.