Question

1. what are the names of the four polysaccharides and what is required for their formation? what are their respective roles for energy storage?

Explanation:

Polysaccharides are formed by the polymerization of monosaccharides (such as glucose) through glycosidic bonds. Starch (in plants) and glycogen (in animals) are energy - storage polysaccharides. Cellulose (in plant cell walls) and chitin (in fungal cell walls and arthropod exoskeletons) have structural roles but can also be broken down for energy in some organisms. Starch is made of amylose (linear) and amylopectin (branched) and is the main energy - storage in plants. Glycogen is highly branched and is the short - term energy - storage in animals (mainly in liver and muscle).

Answer:

The four polysaccharides are starch, glycogen, cellulose, and chitin. They are formed by the polymerization of monosaccharides (e.g., glucose) via glycosidic bonds. Starch (in plants) and glycogen (in animals) are the main energy - storage polysaccharides. Cellulose (plant cell walls) and chitin (fungal cell walls, arthropod exoskeletons) have structural roles but can be sources of energy when broken down (e.g., by some microorganisms for cellulose).