The correct answer is Option (1) → Starch
The carbohydrate used as storage molecule in plants is Starch.
Brief Explanation:
- Starch: Polysaccharide made of amylose and amylopectin; primary energy storage in plants (e.g., in seeds, tubers like potatoes).
- Glycogen: Highly branched polysaccharide; storage form in animals (liver and muscles), not plants.
- Cellulose: Structural polysaccharide (β-1,4 linkages); forms plant cell walls, not used for storage.
- Glucose: Monosaccharide; immediate energy source, but not the storage molecule.
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