The primary role of plant roots is to anchor the plant securely in the soil while absorbing water and essential nutrients. Roots provide stability and support, helping plants withstand environmental stressors like wind and rain. They also facilitate the uptake of minerals from the soil, which are crucial for growth and development. Additionally, roots can store energy in the form of carbohydrates, serving as a reserve for the plant during periods of dormancy or adverse conditions. Overall, roots play a vital role in the overall health and sustenance of the plant.