Where do you find aerenchyma what it their function?

Aerenchyma is primarily found in the stems and roots of aquatic and wetland plants, such as cattails and water lilies. Its function is to facilitate gas exchange, allowing oxygen to diffuse from aerial parts of the plant to submerged tissues, thereby supporting respiration in waterlogged conditions. Additionally, aerenchyma helps buoyancy, enabling plants to stay afloat and access sunlight more effectively.