Hank explains that biological molecules are essential sources of energy. They are used for energy storage and are the instructions that help organisms grow. Biological molecules are found in carbohydrates, lipids, and proteins. Hank uses biological molecules to explain why humans don't eat grass and how humans get energy from bread.
Key Words: Sugars, Monosaccharides, Glucose, Fructose, Disaccharides, Sucrose, Polysaccharides, Cellulose, Glycogen
Hank explains that DNA stores our genetic instructions and illustrates how DNA is structured. He explains the parts of the Double Helix structure and uses a book to put into perspective just how many base pairs are tightly packed in each chromosome.