RHYS LEWIS, AHS, DECD, UNISA / SCIENCE PHOTO LIBRARY RHYS LEWIS, AHS, DECD, UNISA / SCIENCE PHOTO LIBRARY
Formation of disaccharide molecule. Animation showing the reaction between two monosaccharide molecules (simple sugars) to form a disaccharide molecule (a more complex form of carbohydrate). The atoms are colour-coded spheres: carbon (grey), hydrogen (white) and oxygen (red). Here, the two monosaccharide molecules shown at the start of the clip are the simple sugars glucose (left) and fructose (right), both with the molecular formula C6.H12.O6. The reaction is both a condensation and dehydration reaction, resulting in the elimination of a water molecule (H2O) and the formation of a glycosidic bond. The resulting disaccharide in this case is sucrose (C12.H22.O11). Sucrose is widely used as table sugar.
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