Question:
Storage polysaccharides in plants:
Storage polysaccharides in plants:
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Starch turns blue-black in the presence of iodine, while cellulose does not. This is a standard test to differentiate storage vs structural polysaccharides.
Updated On: Jul 4, 2026
- Glycogen
- Cellulose
- Starch
- Pectin
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Concept:
Polysaccharides are large carbohydrate molecules used for either structure or energy storage.
• Storage: Molecules broken down easily for energy.
• Structural: Molecules providing rigid support.
Step 1: Identifying Plant Storage.
Starch is the primary energy reservoir in plants. It is composed of two types of molecules: Amylose and Amylopectin.
Step 2: Comparing with other options.
Glycogen is the storage polysaccharide in animals and fungi. Cellulose and Pectin are structural components of the plant cell wall.
Step 3: Final Choice.
Starch is found in seeds, tubers, and roots specifically for energy storage. Final Answer: (C)
• Storage: Molecules broken down easily for energy.
• Structural: Molecules providing rigid support.
Step 1: Identifying Plant Storage.
Starch is the primary energy reservoir in plants. It is composed of two types of molecules: Amylose and Amylopectin.
Step 2: Comparing with other options.
Glycogen is the storage polysaccharide in animals and fungi. Cellulose and Pectin are structural components of the plant cell wall.
Step 3: Final Choice.
Starch is found in seeds, tubers, and roots specifically for energy storage. Final Answer: (C)
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