Mention Two Ways in Which Root Hairs Are Suited for Absorption of Water from the Soil?

Mention two ways in which root hairs are suited for absorption of water from the soil?

Short/Brief Note

(i) The epidermis and endodermis of root hairs are permeable to water.
(ii) Root hairs have a very large surface area.

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Chapter 4: Absorption by Roots - Exercises [Page 55]

Chapter 4 Absorption by Roots
Exercises | Q 19. | Page 55

How is root hair adapted for the absorption of water from the soil?

Process of ascent of sap in plants occurs by ______.

Root hairs become flaccid, when fertilizers are added to the moist soil around it. Explain.

Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with a suitable idea given in Column ‘I’.

Column I	Column II
(i) Diffusion	(a) The exit or flow of water from the cell to the outer environment.
(ii) Xylem	(b) The shrinkage of protoplasm when the cell is kept in a hypertonic solution.
(iii) Root pressure	(c) The tissue through which water and mineral salts move upward in a plant.
(iv) Isotonic solution	(d) Two solutions which have equal osmotic pressure.
(v) Exosmosis	(e) The process by which the molecules of perfume spread in the room when the bottle is open.
(vi) Osmosis	(f) The process by which roots absorb water from the soil.
(vii) Plasmolysis	(g) The pressure by which water rises up to some feet in a lofty tree.
(viii) Hypotonic solution	(h) The concentration of the solution when lower than that of the cell sap.

Draw a neat and labelled diagram of Root hair.

Epiphytic plants like orchids absorb water vapours from air with the help of epiphytic roots having special tissue called ____________.

Identify the zone in wbkh root hair occurs.

Root hair occurs in the zone of ____________.

The unbranched root hair in plants is formed from ____________.

Give other name of epidermal cells in roots of plants.