Vascular Tissue
Accordingly, the main vascular bundle of xylem and phloem present in the stem of a plant bifurcates into leaf traces, which are branches of vascular tissue that supply leaves. Vascular Tissue: the xylem and phloem in leaves are confined to vascular bundles or veins. Veins are surrounded by a layer of cells call the bundle sheath. The bundle sheath can be composed of parenchyma, colenchyma, or fibers. The veins of vascular tissue are composed of two types of tissue: xylem, and phloem. Leaf Tissue Organization The plant body is divided into several organs: roots, stems, and leaves. The leaves are the primary photosynthetic organs of plants, serving as key sites where energy from light is converted into chemical energy. Not only is vasculature found in the mesophyll, but also the ground tissue of a leaf. Ground tissue comprises the bulk of a plant leaf and is generally comprised of a variety of cell types, the predominant of which are parenchyma. Often less specialized than other plant cell types, parenchyma cells are surrounded by thin, flexible primary walls and execute most of the plant s metabolic activities. Similar to the other organs of a plant, a leaf is comprised of three basic tissue systems, including the dermal, vascular, and ground tissue systems. These three motifs are continuous throughout an entire plant, but their properties vary significantly based upon the organ type in which they are located. 1 Chloroplasts – Sub-cellular, photosynthetic structures in leaves and other green tissues. 2  Chloroplasts contain chlorophyll, a green plant pigment that captures the energy in light and begins the transformation of that energy into sugars. 3  Vascular bundle – Xylem and phloem tissues, commonly known as leaf veins. 1 Xylem-Xylem conducts water from the roots up to the leaves where it is used for photosynthesis. 2  The xylem and phloem tissues are found together in all parts of a plant to form vascular bundles. 3  These vascular bundles are visible in leaves as veins. Xylem is a type of vascular tissue in plants. There are both xylem and phloem that operate to move material thru the plant. the Xylem are like tubes that carry water and min …. 4 people found this useful.
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what type of tissue are the veins in leaves