The main parts of plants are : Root, Stem and leaves
That part of the plant which is below the ground (in the soil), is called root.
The main functions of root are:
1) Roots anchor the plant to the soil. It means that root fix the plant firmly to the soil or ground. This prevents the plant from being pulled out easily or blown away by the wind.
2)Roots absorb water and mineral from the soil. These are needed for the manufacture of food by plant leaves.
3)Roots that help in holding the soil together. In this way, roots prevent the soil from being blown away by wind or washed away by water and help in the conversation of soil.
Roots are primarily of two types:-
1)Tap roots, and
Tap root is a straight tapering root which grows vertically down into soil and gives out branches on all the sides.
Tap root is the main root and and the smaller, side roots are called lateral roots.
Tap root itself is a quite thick but its branches are much thinner.
Some examples are Pea Plant, Neem tree, mango tree, Marigold, Tulsi, Gram, Carrot, Radish, Beet and Turnip.
The fibrous root consist of many thin, fibre-like roots of a similar size.
The fibrous roots spread out in the soil and give a firm support to the plant.
Some of the plants which have fibrous roots are Sweet potato, Paddy (rice), Grass, Maize, Millet (Bajra), Sugarcane and Bamboo.
The Minerals present in soil get dissolved in this water. The roots absorb water and minerals from the soil and the stem carries them to the leaves. The leaves prepare food. The food prepared in leaves is carried by the stem to all the parts of the plant, which includes roots. Some of the plants store food in their roots. We eat such roots as food. For example radish, carrot, sweet potato, turnip and tapioca. which we eat as food are the roots of the respective plants.