The process that involves the movement of water through a plant is known as transpiration. During transpiration, water evaporates from the surfaces of leaves, creating a negative pressure that pulls water from the roots through the xylem vessels. This movement not only helps in nutrient transport but also regulates temperature and maintains the plant's hydration. Transpiration is essential for photosynthesis and contributes to the water cycle, reinforcing the interconnectedness of ecological systems and the environment.