1. Different Types of Supporting Tissues
  2. Functions of Supporting Tissues in Plants


Types of Supporting Tissues

Plants have various types of supporting tissues that make them up.  Like animals, these tissues help them to stand some meters above the ground without falling. They have definite shape, strength, rigidity and to resists external force like wind and water.

Tissues that give support to plant are:

  1. Parenchyma
  2. Collenchyma
  3. Sclerenchyma
  4. Xylem

1. Parenchyma

  • Tissues made up of living unspecialized plant cells that are roughly spherical in shape
  • They are composed of mainly cellulose and a large vacuole containing cell sap
  • It gives rigidity to plants as a result of tightly packed cells.
  • Other tissues are derived from parenchyma.
  • They possess thin wall and are found in the cortex of stems, leaf mesophylls, and flesh of fruits.

2. Collenchyma

  • Consist of living cells that are thickened at the corners.
  • Collenchyma cells are found beneath the epidermis in stems and petioles and around the veins in dicot leaves.

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