DENDROLOGY

Detailed explanation-1: -Phloem is the vascular tissue which transports food from leaves to the other parts of the plant. Phloem is composed of various specialized cells called sieve tubes, companion cells, phloem fibers and phloem parenchyma cells. Whereas xylem transport water and minerals from roots to different parts of the plant.

Detailed explanation-2: -They are stacked end to end in the center of the plant, forming a vertical column that conducts water and minerals absorbed by the roots upward through the stem to the leaves. Phloem cells form a similar chain on the outer edges of the xylem, transporting food synthesized by the leaves downward through the stem.

Detailed explanation-3: -Phloem is responsible for transporting sugars, proteins, and other organic molecules in plants. Vascular plants are able to grow higher than other plants due to the rigidity of xylem cells, which support the plant.

Detailed explanation-4: -Sugars produced in sources, such as leaves, need to be delivered to growing parts of the plant via the phloem in a process called translocation, or movement of sugar. The points of sugar delivery, such as roots, young shoots, and developing seeds, are called sinks.