The Structure of Stem

The stem is usually above ground upright ascending portion of the plant that forms from the plumule. The leaf-bearing section of the stem or its branch is called the shoot. Stem branches have an external origin. Young stems are green, soft, and flexible, whereas mature stems are dark brown, rigid, and woody. It also carries leaves and flowers, emerges via a terminal bud, and separates nodes and inter-modes.

The stem is the main support structure for a plant. It helps to transport water and nutrients throughout the plant, and it also helps to support the plant's leaves and flowers. The stem is made up of two main parts: the stem's bark and the stem's inner tissue. The bark is the tough outer layer that protects the stem's inner tissue. The inner tissue is made up of two types of cells: xylem and phloem. The xylem cells help to move water and minerals up the stem, and the phloem cells help to move carbon dioxide and other nutrients down the stem.

A stem is composed of nodes and internodes. The nodes are the points where the leaves attach to the stem, and the internodes are the spaces between the nodes. The internodes are often where the stem conducts water and nutrients to the leaves.

Nodes

The nodes bear leaves with axillary buds. They hold one or more leaves, as well as buds which can grow into branches (with leaves, conifer cones, or inflorescences . Adventitious roots may also be produced from the nodes.

Internodes

The internodes distance one node from another.

Functions

Support Leaves, Flowers, Fruits etc..

Transport Fluids, Minerals etc..

Store Nutrients.

Generate new tissues.