DENDROLOGY

Detailed explanation-1: -Phloem tissue is responsible for translocating nutrients and sugars (carbohydrates), which are produced by the leaves, to areas of the plant that are metabolically active (requiring sugars for energy and growth).

Detailed explanation-2: -Stems possess specialized tissues called vascular bundles that conduct food and water to all parts of the plant. Xylem and phloem are conducting tissues that together form the vascular bundles. Phloem carries food from the leaf to the different parts of the plant.

Detailed explanation-3: -Parenchyma cells are responsible for metabolic functions, such as photosynthesis, and they help repair and heal wounds. Some parenchyma cells also store starch. Collenchyma cells are elongated cells with unevenly thickened walls (Figure 3). They provide structural support, mainly to the stem and leaves.