Starch is a polysaccharide composed of many glucose molecules linearly arranged.
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- Fructose, sucrose, galactose, and glucose are carbohydrates. They are organic compounds with H, C, and O. Their functional groups are hydroxyl (-OH) and carbonyl (-C=O).
- Galactose, fructose, and glucose are isomeric monosaccharides, with the formula C₆H₁₂O₆.
- Sucrose is a disaccharide composed of glucose + fructose. The formula is C₁₂H₂₂O₁₁.
Glucose is the most abundant carbohydrate. The main source of glucose is vegetable starch.
- The starch molecule is composed of many glucose molecules joined.
This is a linear polysaccharide that can acquire a tridimensional helicoidal conformation. Each of the helices turns consists of six glucose molecules. In the interior of the helix, there are only hydrogen atoms. Hydroxyl groups are facing the exterior.
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