Question:
Type of Glycosidic bonds in cellulose and starch respectively
Type of Glycosidic bonds in cellulose and starch respectively
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Cellulose = β-1,4; Starch = α-1,4 + α-1,6.
Updated On: Jul 18, 2026
- β-1,4 and α-1,4 glycosidic bonds only
- β-1,4 and α-1,4, α-1,6 glycosidic bonds
- β-1,6 and α-1,4, α-1,6 glycosidic bonds
- β-1,4, α-1,4 and α-1,6 glycosidic bonds
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The Correct Option is D
Solution and Explanation
Step 1: Cellulose structure.
Cellulose is a linear polysaccharide made of glucose units linked by β-1,4 glycosidic bonds forming rigid chains.
Step 2: Starch structure.
Starch contains amylose (α-1,4 bonds) and amylopectin (α-1,4 and α-1,6 bonds at branch points).
Step 3: Comparison.
Thus cellulose has β-1,4 bonds while starch has α-1,4 and α-1,6 bonds.
Step 4: Evaluation.
Only option (4) correctly includes all bond types.
Step 5: Final conclusion.
Hence correct answer is option (4).
Cellulose is a linear polysaccharide made of glucose units linked by β-1,4 glycosidic bonds forming rigid chains.
Step 2: Starch structure.
Starch contains amylose (α-1,4 bonds) and amylopectin (α-1,4 and α-1,6 bonds at branch points).
Step 3: Comparison.
Thus cellulose has β-1,4 bonds while starch has α-1,4 and α-1,6 bonds.
Step 4: Evaluation.
Only option (4) correctly includes all bond types.
Step 5: Final conclusion.
Hence correct answer is option (4).
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