A small chemical unit that makes up a polymer.

Molecules composed of many monomers. They make up macromolecules.

A compound made up of carbon, hydrogen, and oxygen atoms. It is a type of nutrient that is the major source of energy for the body.

A simple sugar molecule.

A macromolecule made mostly from carbon and hydrogen atoms. It includes fats, oils, and waxes.

Macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorous.

A subunit of which nucleic acids are composed. Made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base.

A macromolecule that contains carbon, hydrogen, oxygen, and nitrogen. It is needed by the body for growth and repair.

A compound with an amino group on one end and a carboxyl group on the other end.

A process that changes, or transforms, one set of chemicals into another set of chemicals.

Elements or compounds that enter into a chemical reaction.

Elements or compounds produced by a chemical reaction.

Energy that is needed to get a reaction started.

A substance that speeds up the rate of a chemical reaction.

A protein catalyst that speeds up the rate of specific biological reactions.

A reactant of an enzyme-catalyzed reaction.