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

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

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.

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