AP BIOLOGY

Detailed explanation-1: -stem, in botany, the plant axis that bears buds and shoots with leaves and, at its basal end, roots. 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-2: -Vascular bundles consist of phloem tissue, xylem tissue, and a layer called the cambium between them. Each vascular bundle is supported by a tough section of parenchyma and sclerenchyma tissue called the pericycle. Pith is the spongy storage tissue in the center of stems, also made up of parenchyma cells.

Detailed explanation-3: -The stem is the part that stays above the ground. A stem usually bears leaves, fruits plus flowers. It distributes the nutrients and minerals all the way from the plant to the leaves. Furthermore, the stem is the support system of the plant.

Detailed explanation-4: -Stems are one of the three organs of a plant. The primary function (most important job) of a stem is mechanical support. Mechanical support means the plant’s stem supports the plant and holds it upright to help it grow toward sunlight. Stems also connect the other organs of the plant.