15.A Macromolecules Needed for Life

Biomolecules

Brief introduction to the four major classes of biomolecules including carbohydrates, lipids, proteins, and nucleic acids. Duration: 1:31.

Carbohydrates

This video is a review of both simple and complex carbohydrates. Duration: 5:16.

Lipids

An introduction to the two types of lipids: the fats and steroids. Duration: 5:19.

Proteins

The polypeptide is a polymer of amino acids. A protein is a polypeptide with biological function. Duration: 4:26.