Question

which polysaccharide is used by plants for storing energy? starch chitin glycogen cellulose

Explanation:

To determine the polysaccharide used by plants for energy storage, we analyze each option:

• Starch: Plants synthesize starch (composed of amylose and amylopectin) to store excess glucose for later energy use.
• Chitin: A structural polysaccharide in fungi and arthropod exoskeletons, not for plant energy storage.
• Glycogen: The energy - storage polysaccharide in animals (like liver and muscle cells), not in plants.
• Cellulose: A structural polysaccharide in plant cell walls, providing rigidity, not for energy storage.

Answer:

A. Starch