Final answer:
Amylose and amylopectin are carbohydrates and significant components of starch, serving as primary energy storage molecules in plants.
Step-by-step explanation:
Amylose and amylopectin are important because they are carbohydrates. These two polysaccharides are the major components of starch, which is a primary energy storage molecule in plants. Amylose is a linear polymer composed of D-glucose units linked by α(1→4) glycosidic bonds, while amylopectin has a branched structure, with α(1→4) linkages but also α(1→6) bonds at the branching points. Both amylose and amylopectin are digested by enzymes like amylase and are crucial sources of glucose for many organisms.