Answer:
by the formation of glycosidic bond between simple sugars/monosaccharides.
Step-by-step explanation:
A polymer is generally considered a chemical substance built from small similar units of chemicals.
Carbohydrate polymers such as starch and cellulose are formed by polymerization reaction involving simple sugars or monosaccharides.
During polymerization process, energy is used to form a glycosidic linkage between monosaccharide molecules. The linkage occur through a dehydration reaction between two simple sugars leading to the elimination of water.