Carbohydrate
organic compound that consists only of carbon, hydrogen, and oxygen / From Wikipedia, the free encyclopedia
Carbohydrates are chemical compounds that contain only oxygen, hydrogen and carbon. They are made up of joined-up sugars. Sugars have the general formula Cm(H2O)n, and are also known as saccharides.
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Certain carbohydrates are an important storage and transport form of energy in most organisms, including plants and animals.