Biology – The Roots – Notes For W.B.C.S.

Root is the most essential part of a plant that grows down to the soil and water.
Root avoid the sunlight, as it grows down to soil and water, and absorbs mineral salt and water from the soil.
- However, some typical roots are also aerial or aerating, that grow up above the ground or especially above the water.
- Roots do not have leaves, buds, and nodes.
Functions of the Roots
- The roots absorb mineral salts and water from the soil then supply them to other parts of the plants.
- Roots provide foundation to plants and keep them static.
- Some roots absorb foods for the contingency period; e.g. radish, carrot, etc.
Types of Roots
- Primarily, roots are classified as −
  - Tap Root
  - Fibrous Root
  - Adventitious Root
  - Let’s discuss them in brief −
Tap Root
- There is a main root (see the image given below) that grows faster and it has many branches. Usually, it occurs in dicotyledon plants.

Functions of the Roots