What is the structural carbohydrate in plants?

The structural carbohydrate in plants is cellulose. It is a complex carbohydrate made up of long chains of glucose molecules, which form fibers that provide rigidity and strength to plant cell walls. This structural integrity is essential for maintaining the plant's shape and supporting growth, allowing it to withstand various environmental stresses. Additionally, cellulose is not digestible by humans, making it a key component of dietary fiber.