By: Dilyn Becker

Definitions and interesting facts

They are organic nutrients of humans and animals that are present in every plant or animal cell. They make up the largest portion of organic compounds present on earth. They are a group of chemical compounds that contain carbon, hydrogen, and oxygen. We need them a our primary energy source, they are in cellulose, and they store energy too.


Monosaccharides: Glucose, fructose, galactose

Disaccharides: sucrose, maltose, lactose

Polysaccharides: made up of ten or more monosaccharides


It's the primary source of energy for plants and animals. It's also used for energy storage. It's the building block for cell structure (cellulose)