Carbohydrates play a pivotal role in various biological processes, serving as energy sources and structural components in cells. In particular, polysaccharides such as starch, glycogen, and cellulose exhibit unique structural and functional properties due to their differing monomeric units and glycosidic linkages. Consider the relationship between carbohydrate structure and function depicted in the following scenario:
A research scientist is analyzing different polysaccharides and their respective roles in organisms. They find that one polysaccharide is predominantly used for energy storage in plants, while another serves a structural role in plants, providing rigidity to cell walls.
Based on their molecular structure, which of the following polysaccharides would most likely correspond to this scenario? Identify the polysaccharide associated with energy storage in plants and the one functioning as a structural component.