DENDROLOGY

Detailed explanation-1: -A stem performs the following functions in a plant: (i) It supports branches, leaves, flowers, and fruits. (ii) It transports water and minerals from the roots to the leaves and other parts of plants. (iii) It transports food from leaves to different parts of the plant.

Detailed explanation-2: -Xylem vessels It is a non-living tube which runs from roots of the plants and runs through the stem and reaches every leaf.

Detailed explanation-3: -The stem conducts water, minerals, and food to other parts of the plant; it may also store food, and green stems themselves produce food.

Detailed explanation-4: -The plant parts like root, stem, and leaves are called vegetative parts because they have the power of growing asexually without getting involved in the process of reproduction.