What is the role of xylem in plants?

Xylem plays a crucial role in the transport of water and dissolved minerals from the roots of a plant to its aerial parts, such as stems and leaves. This process is essential for maintaining various physiological functions, including photosynthesis, nutrient transport, and temperature regulation. Xylem consists of specialized cells known as tracheids and vessel elements that facilitate efficient water movement via capillary action and cohesion, allowing plants to thrive in various environments.

While xylem does provide some structural support due to its rigid cell walls, its primary function is to transport water. Other structures in plants, such as phloem, are responsible for transporting food (in the form of glucose) from the leaves to other parts of the plant, and additional tissues are involved in storing food and water as well. Thus, the correct understanding of xylem's role focuses on its essential function in water transport.