Stems and Roots- Important Plant Parts
The producers on our planet, plants are autotrophic in nature. Plants are designed in such a way that they can produce their own food from sunlight, water, and minerals in the soil. The two main parts of a plant body are the stem, the part that stays above the ground and holds the other parts of the plant, and the root which grows below the ground and helps keep the plant fixed in one place. The roots absorb minerals and water. Both these plant parts have many important functions on which the survival of the plants depend.
The stem of a plant emerges from the plumule of the embryo, exhibiting growth that is positively phototropic and negatively geotropic. Stems have nodes and internodes that facilitate the growth of different plant structures such as leaves, branches, flower buds, etc.
Functions of the Stem
To facilitate fluid and nutrition transport.
Provide mechanical support to the plant body. It changes into a trunk as the plant grows into a tree. The trunk is the hard, brown part that gives physical support.
To provide an appropriate arrangement of branches and leaves.
Storage of nutrients and water.
Provide for the lifelong growth of the plant.
It facilitates the production of new cells and tissues.
Stems are composed of morphological structures- nodes, internodes, and axillary buds.
Roots are the major vegetative parts of the plants that are negatively geotropic. Roots develop from the radicals of the embryo.
Functions of Roots
Absorption of water
Storage of nutrients
Providing anchorage to the plants
Facilitating vegetative propagation
Roots are of various types like tap root, adventitious roots, lateral roots, fibrous roots, etc.
Let us look at the major differences between stem and roots.
Differences Between Stem and Root