NEETPLAY.COM
NEETBUDDY.COM
1.Region of meristematic activity. The cells of this region are very small, thin-walled and with dense protoplasm. 2. Region of elongation. The cells of the elongation zone gradually differentiate and mature. 3. region of maturation. From this region some of the epidermal cells form very fine and delicate, thread-like structures called root hairs. These root hairs absorb water and minerals from the soil.
In some plants such as Rhizophora growing in swampy areas, many roots come out of the ground and grow vertically upwards. Such roots, called pneumatophores, help to get oxygen for respiration.
mangrove pneumatophores Pneumatophores of the black mangrove (Avicennia germinans) encrusted with salt and a young seedling projecting above the surface of the water.
By
NEET PLAY & NEETBUDDY.COM
Modifications
banyan tree : Ficus benghalensis
banyan tree : Ficus benghalensis extend their aerial roots, and they spread and cover a very large area. But is it possible without the main trunk? Looks like it is. The Great Banyan lost its original trunk to disease after being struck by two massive cyclones, and so in 1925, its original trunk had to be removed in order to stop the spread of the disease. That didn’t stop the tree from growing, and grew it did! A total of 3772 aerial roots to be precise.
the stems of maize and sugarcane have supporting roots coming out of the lower nodes of the stem. These are called stilt roots or Brace roots.