Question:
Which of the following is a heteropolysaccharide?
Which of the following is a heteropolysaccharide?
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• Same monomer → Homopolysaccharide (e.g., glycogen, dextran)
• Different monomers → Heteropolysaccharide (e.g., agarose)
Updated On: May 13, 2026
- Chitin
- Dextran
- Agarose
- Glycogen
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The Correct Option is C
Solution and Explanation
Concept:
Polysaccharides are classified based on the type of monosaccharide units:
• Homopolysaccharides: Contain only one type of monosaccharide.
• Heteropolysaccharides: Contain two or more different types of monosaccharides.
Step 1: Analyzing the given options.
• Chitin: Composed of repeating units of N-acetylglucosamine → Homopolysaccharide.
• Dextran: Made up of glucose units → Homopolysaccharide.
• Agarose: Contains alternating units of D-galactose and 3,6-anhydro-L-galactose → Heteropolysaccharide.
• Glycogen: Made entirely of glucose units → Homopolysaccharide.
Step 2: Selecting the correct answer.
Only agarose consists of different types of monosaccharide units, hence it is a heteropolysaccharide.
• Homopolysaccharides: Contain only one type of monosaccharide.
• Heteropolysaccharides: Contain two or more different types of monosaccharides.
Step 1: Analyzing the given options.
• Chitin: Composed of repeating units of N-acetylglucosamine → Homopolysaccharide.
• Dextran: Made up of glucose units → Homopolysaccharide.
• Agarose: Contains alternating units of D-galactose and 3,6-anhydro-L-galactose → Heteropolysaccharide.
• Glycogen: Made entirely of glucose units → Homopolysaccharide.
Step 2: Selecting the correct answer.
Only agarose consists of different types of monosaccharide units, hence it is a heteropolysaccharide.
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