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Author: Aaron Mullally

This lesson will discuss the structure and function of carbohydrates as well as introduce the types of carbohydrates and their roles in your body.

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Carbohydrate Classification and Functions

Video Images: Video Images: Starchy foods image, Public Domain:; Lyristes Plebejus image, Creative Commons:; Glucose image, Public Domain:; Saccharose image, Public Domain:; Glycogen image, Public Domain:

Terms to Know

​Organic compounds broken down into sugar by the body and used as a source of energy.


​Simple carbohydrates composed of single sugar units.


​Carbohydrates composed of two or more sugar units combined. Oligosaccharides include a type of carbohydrate called disaccharides which are composed of exactly two sugar units.


​Carbohydrates composed of many sugar units joined together by dehydration synthesis.

​Organic Compounds

Compounds that contain the element carbon.