NEET BIOLOGY

Detailed explanation-1: -Veins are composed of xylem and phloem cells embedded in parenchyma, sometimes sclerenchyma, and surrounded by bundle sheath cells. The vein xylem transports water from the petiole throughout the lamina mesophyll, and the phloem transports sugars out of the leaf to the rest of the plant.

Detailed explanation-2: -Like the stem, the leaf contains vascular bundles composed of xylem and phloem (Figure 12.2.

Detailed explanation-3: -The vascular bundles comprise both xylem and phloem. The bundling of the vascular tissues ensures the connection between the remaining plant parts. This bundling ensures efficient transportation of substances.

Detailed explanation-4: -Xylem and phloem are called vascular or conducting tissues because both xylem and phloem tissues transport materials in plants, they are together called vascular tissues.

Detailed explanation-5: -The vascular bundles are arranged near the edge of the stem, with the phloem on the outside and the xylem on the inside.