Nodes

Definition

Nodes are specific points on a stem where leaves, branches, or flowers originate. These critical regions play a vital role in plant growth and development.

5 Must Know Facts For Your Next Test

1. Nodes are essential for the attachment of leaves, which are crucial for photosynthesis.
2. Adventitious roots often emerge from nodes, aiding in the plant's stability and nutrient absorption.
3. The distance between two consecutive nodes is referred to as the internode.
4. Nodes contain meristematic cells that enable the growth of new stems and leaves.
5. The presence of nodes can help distinguish between monocots and dicots based on their arrangement.

Review Questions

Related terms

Internode: The segment of a plant stem between two successive nodes.

Meristematic Cells: Undifferentiated cells in plants responsible for continuous growth.

Adventitious Roots: Roots that grow from unusual places like stems or leaves rather than from the primary root system.