How are disaccharides and monosaccharides related?
Disaccharides are the condensation products of monosaccharides.
A condensation is a chemical reaction in which two molecules combine to form a larger molecule, together with the loss of a small molecule such as water.
For, example, two molecules of the monosaccharide, glucose, can condense to form a molecule of the disaccharide, maltose, and a molecule of water.
We could write the equation for the reaction as