3.3 Sugars

Image of a sucrose molecule

Sugars are composed of carbon, hydrogen, and oxygen atoms joined together to form one or more rings.  There are many different types of sugar whose names may be familiar to you (glucose, fructose, lactose).  The table sugar you might add to your coffee is called sucrose.  Sucrose is actually a combination of two simple sugars: glucose and fructose.   The sugars ribose and deoxyribose are essential parts of nucleic acids (discussed next).

Image of a deoxyribose versus a ribose molecule

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The Evolution and Biology of Sex by Sehoya Cotner and Deena Wassenberg is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, except where otherwise noted.