Biology- Root hairs

  Root hairs are unicellular thin-walled outgrowths of the epidermis or the outermost layer of the roots.

Comments

Post a Comment

Popular posts from this blog

Biology - Xylem and Phloem

Image
   Xylem- transports water and minerals upwards from the roots. The dead cells of xylem (tracheids and vessels) are joined end to end forming long tubes , which conduct water along the length of the plants   Phloem - transfers food made in the leaves to all parts of the plant. The sieve cell of food Phloem tissue also from long tubes for translocation of food . At maturity , sieve cells lack a nucleus and have very few organelles to allow translocation of food molecules
Read more

Biology- Absorption of water and minerals in plants: OSMOSIS

Image
The movement of water molecules from the region of its higher concentration to the region of its lower concentration when both are separated from a semi permeable membrane is called osmosis .  i.e. the water molecules from the soil (higher concentration) are absorbed by the root hairs of plant (lower concentration) through the process of osmosis.
Read more