When two monosaccharides are put together to form one disaccharide how many water molecules are formed ?

One water molecule is formed.
The process where 2 monosaccharides joined together is called condensation, and because after the bond, 2 hydrogen and 1 oxygen molecule is left out, therefore 1 water molecule is produced.
Note that when the new product disaccharides is broken down back into 2 monosaccharides, the water molecule is used back.

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Oseni Oseni · Answer 2 · 2021-10-19T11:29:37+02:00

When two monosaccharides are put together to form one disaccharide, only one molecule of water is eliminated.

Two or more monosaccharides can come together to form a disaccharide, oligosaccharide, or polysaccharide in a type of reaction known as condensation reaction. The monosaccharides are linked together by a covalent bond known as glycosidic bond.

A single glycosidic bond links the two monosaccharides in a disaccharide. The bond is formed as a result of a reaction between the anomeric carbon of one of the monosaccharides and the OH group of the other with the elimination of a water molecule.

More on glycosidic linkage can be found here: https://brainly.com/question/6834008