Question

Cellulose, the most important constituent of plant cell wall is made up of

• A. branched chain of glucose molecules linked by` $ \alpha ,\,1,\,6- $ glycosidic bond at the site of branching
• B. unbranched chain of glucose molecules linked by $ \alpha ,\,1,\,4- $ glycosidic bond
• C. branched chain of glucose molecules linked by $ \beta ,\,1,\,4- $ glycosidic bond in straight chain and $ \alpha ,\,1,\,6- $ glycosidic bond at the site of branching
• D. unbranched chain of glucose molecules linked by $ \beta ,\,1,\,4- $ glycosidic bond

Answer 1

Answer: (D)

Cellulose $ (C_{6}H_{10}O_{5})_{n} $ is the most abundant organic polymer. It is a polysaccharide and consists of long unbranched chains of glucose residues linked by $ \beta ,\,1,\,4- $ glycosidic bonds. In plants, cellulose is formed from sugar. It serves as a building material in the formation of cell wall.