AP BIOLOGY

Detailed explanation-1: -Stems may be herbaceous (soft) or woody in nature. Their main function is to provide support to the plant, holding leaves, flowers and buds; in some cases, stems also store food for the plant.

Detailed explanation-2: -Root systems also provide support for plants in the form of an anchor in the soil. If the wind blows hard, those roots keep the plant from falling over.

Detailed explanation-3: -Plant structural support is the permanent deposition of polymers such as lignin or cellulose in cell walls to maintain the shape of the plant and its cells.

Detailed explanation-4: -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-5: -A stem is one of two main structural axes of a vascular plant, the other being the root. It supports leaves, flowers and fruits, transports water and dissolved substances between the roots and the shoots in the xylem and phloem, stores nutrients, and produces new living tissue.