Carbohydrates provide energy for all body cells.
There are three types of carbohydrates: monosaccharides, dissaccharides and polysaccharides.
Polysaccharides: Starch, glycogen and cellulose
Monosaccharides: Galactose, fructose and glucose
Dissaccharides: Maltose, sucrose and lactose.
Cellulose cannot be digested and monosaccharides are the simplest form of sugar.
This video is pretty much it.
(i'm sorry its kinda in a bad quality....)
To test for carbohydrates: Benedicts and Iodine test.
Benedicts test is to test for the presence of reducing sugar. When reducing sugar is present, the solution will turn to a orange-red precipitate. If reducing sugar is not present, the solution will remain its original colour.
Iodine test is to test for the presence of starch. If starch is present, the iodine will turn from brown to blue-black. If not, the starch will remain brown.
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