What is defined as the evaporation of water from the leaves of a plant?

The process defined as the evaporation of water from the leaves of a plant is known as transpiration. This process is essential for plants as it helps to regulate temperature and facilitate the uptake of nutrients and water from the soil. During transpiration, water vapor exits the leaf through small openings called stomata, which also play a role in gas exchange, allowing carbon dioxide to enter the plant for photosynthesis.

In contrast, photosynthesis refers to the process by which green plants, using sunlight, convert carbon dioxide and water into glucose and oxygen. Germination is the stage where a seed develops into a new plant, while respiration is the process by which plants convert glucose and oxygen into energy. Each of these processes plays a vital role in plant health, but only transpiration specifically addresses the evaporation of water from leaf surfaces.