Q. Veins seen in the leaves, serve the function of ____:
Answer: Conduction
Notes: The veins are the vascular tissue of the leaf and are located in the spongy layer of the mesophyll. The veins are made up of: Xylem: tubes that bring water and minerals from the roots into the leaf; and Phloem: tubes that usually move sap, with dissolved sucrose, produced by photosynthesis in the leaf, out of the leaf. Veins lend support to the leaf tissue, helping it keep its shape.