Veins
Veins in plants, also known as vascular bundles, are integral components of leaves that provide structural support and transport essential substances. They consist of two main tissues:
- Xylem: Responsible for transporting water and dissolved minerals from the roots to the rest of the plant, including the leaves. This movement is driven by Transpiration and root pressure.
- Phloem: Transports sugars and other organic compounds produced during Photosynthesis from the leaves to other parts of the plant for energy storage and use.
Veins are typically arranged in patterns characteristic of plant groups. In monocots, veins run parallel, while in dicots, they form a branching network. The vascular tissues are surrounded by a bundle sheath, a layer of protective cells that also play a role in regulating the movement of substances.
The placement of veins ensures efficient distribution of nutrients and water throughout the leaf, supporting cellular activities and maintaining overall plant health.