• Home /Exam Details (QP Included) / Preliminary Exam / General Science / Biology – The Roots – Notes For W.B.C.S. Examination.
  • Biology – The Roots – Notes For W.B.C.S. Examination.
    Posted on February 7th, 2019 in General Science
    Tags:

    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.
    WBCS Feedburner Subscription 2019 2019 2019