The process of transpiration in plants involves the movement of water from the roots through the plant to the leaves, followed by its evaporation into the atmosphere. This physiological process helps regulate temperature, as water vapor leaves the plant, cooling its surface. Transpiration also facilitates nutrient uptake and maintains cell turgor, which is essential for structural integrity. The water lost through transpiration is replaced by the uptake of water from the soil through the roots. This process is a vital component of the water cycle and contributes to overall plant health and growth.