Plant physiology is the study of how plants function and grow. It focuses on processes such as photosynthesis, where plants convert sunlight into energy, and respiration, which allows them to use that energy. Understanding these processes helps scientists learn how plants adapt to their environment and how they contribute to ecosystems. Another important aspect of plant physiology is the study of plant hormones, which regulate growth and development. These hormones control various functions, such as flowering, fruiting, and responses to stress. By examining these processes, researchers can improve agricultural practices and enhance crop yields.