Question

Cellulose is a polysaccharide and is made of:

• A. \(\beta\)-\(\text{D-glucose}\) units joined through 1,4-glycosidic linkages
• B. \(\alpha\)-\(\text{D-glucose}\) units joined through 1,4-glycosidic linkages
• C. \(\alpha\)-\(\text{D-glucose}\) units joined through 1,6-glycosidic linkages
• D. \(\beta\)-\(\text{D-glucose}\) units joined through 1,6-glycosidic linkages

Hint:

Cellulose, found in plant cell walls, is made from \(\beta\)-\(\text{D-glucose}\) units with 1,4-glycosidic linkages.

Answer 1

The Correct Option is A

Cellulose is a linear polysaccharide made of \(\beta\)-\(\text{D-glucose}\) units. These glucose units are connected by 1,4-glycosidic linkages, forming long chains. The alternating \(\beta\)-configuration allows for hydrogen bonding, making cellulose a strong and rigid structure. Hence, the correct answer is \(\beta\)-\(\text{D-glucose}\) units joined through 1,4-glycosidic linkages.