Chemistry of Life

Study Guide : Jalaa Trice

Water

Water is so important because it hydrates us. Covalent bonded, dihydrogen monoxide H2O, unequally shaved electrons cause the molecule to have slight charges on the ends.Water is crucial to your health. It makes up, on average, 60 percent of your body weight. Every system in your body depends on water. Water is made from H2O.

Macromolecules

Biological macromolecules are large molecules made up of smaller organic molecules.
There are four classes of macromolecules: carbohydrates, lipids, proteins and nucleic acids.