Which of the following biopolymers is correctly paired with the bond that forms between the monomers:

A) protein: ester bond

B) RNA: phosphate bond

C) polysaccharide: glycosidic bond

D) DNA: phosphate bond

E) all of the above

C) polysaccharide: glycosidic bond

Explanation:

Monosaccharides are the simplest carbohydrate which cannot be further hydrolysed. Examples of monosaccharides are glucose, fructose. Monosaccharides combined together to form polysaccharides. Polysaccharides are long chains of monosaccharides linked by glycosidic bonds. The glycosidic bond is a covalent bond. It is formed between an anomeric carbon of one cyclic monosaccharide with the alcoholic or OH group of a second monosaccharide. Examples of polysaccharides are starch, glycogen and cellulose.