The primary purpose of the roots of a plant is to anchor the plant and absorb water and essential nutrients from the soil. Roots serve as the foundation for the plant, stabilizing it against environmental forces such as wind and erosion. They also play a critical role in the plant's overall health by drawing in moisture and minerals needed for growth and development. Additionally, some plants utilize specialized roots for storage of energy in the form of carbohydrates, enabling them to survive during adverse conditions. Overall, roots are vital to a plant's survival and productivity.