Cellulose, the most important constituent of the plant cell wall, is made up of:
Correct answer: B. Unbranched chain of glucose molecules linked by b1, 4 glycosidic bond
- A. Branched-chain of glucose molecules linked by B-1,4 glycosidic bonds in straight-chain and Alpha1,6 glycosidic bonds at the site of branching
- B. Unbranched chain of glucose molecules linked by b1, 4 glycosidic bond
- C. Branched-chain of glucose molecules linked by Alpha-1,6 glycosidic bonds at the site of branching
- D. Unbranched chain of glucose molecules linked by a1, 4 glycosidic bond
Explanation
Cellulose is the most abundant carbohydrate. Cellulose molecule is composed of 1600 to 6000 glucose molecules joined together. Those polymers form long-twisting macromolecules of cellulose. The chains are unbranched and linear. The successive glucose residues are joined together by B-1,4 linkages.
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