.Give reason why? (a) Aquatic plants float in water (b)Epidermal cells of the roots whose function is water absorption have hair like part (root hair)
Answers
Answer:
Aquatic plants float on water because they have buoyancy because of the presence of large air cavities in their parenchyma, and the parenchyma is known as aerenchyma. This makes them float on water.
Answer:
a) Air-filled tissues in various parts of the plant provide the buoyancy that allows them to float. ... A similar but invisible air-filled tissue is found in the swollen leaf stalks of the water hyacinth, Eichhornia crassipes. It floats freely on the water and bears attractive clusters of blue-violet flowers.
b) Root hair, or absorbent hairs, are tubular outgrowths of a epidermal cell of a root, a hair-forming cell on the epidermis of a plant root. ... Root hair cells are adapted to this process by increasing root surface area for the purpose of taking in more water.