2 monosaccharides join to form a disaccharide. for example:
glucose linked to glucose forms maltose
glucose linked to fructose forms sucrose
glucose linked to galactose forms lactose.
when two monosaccharides join, a molecule of water is removed and the reaction is called a condensation reaction.The bond that is formed is called a glycosidic bond.
when water is added to a disaccharide, it breaks the glycosidic bond, releasing the monosaccharides that the disaccharide was formed from.
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