Biomolecules Question 83

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

[1998]

(a) unbranched chain of glucose molecules linked by $\alpha-1,4$ glycosidic bond

(b) 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

(c) unbranched chain of glucose molecules linked by $\beta-1,4$ glycosidic bond

(d) branched chain of glucose molecules linked by $\alpha-1,6$ glycosidic bond at the site of branching.

Show Answer

Answer : c

Hints & Solutions

(c) Cellulose is the structural polysaccharide of plant cell walls. They are long chain polymers of $\beta$-glucose units. The adjacent $\beta$-glucose units are joined by linkages.