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प्रश्न
How is root hair structurally adapted for absorption of water from the soil?
उत्तर
(i) The root hair represents a large surface area in contact with the soil particle.
(ii) The minute root hair can penetrate between the soil particles and when it comes in contact with soil water, the cell membrane allows efficient entry of water into the root.
(iii) The cytoplasm and the vacuoles also help in this water absorption by osmosis.
APPEARS IN
संबंधित प्रश्न
Draw a magnified view of the root-hair, and describe, how it helps in the absorption of water from the soil.
Name the following:
Tissue concerned with upward conduction of water.
Choose the correct answer:
Process of ascent of sap in plants occurs ___________
The alongside diagram A shows a root hair growing through the soil particles. Diagram B is the root hair of an aquatic plant.
(i) Name the parts 1,2,3.
(ii) Name two substances which enter the root hair. What are their uses?
(iii) By what process do these substances enter the root hair?
(iv) Account for the different shapes of root hairs in the two diagrams.
A thin strip of epidermal cells of a leaf was observed in a drop of water. They all looked turgid and normal.
(a) Draw a diagram of such a cell.
(b) Draw a diagram of a cell if this strip is transferred to a strong concentrated solution of sugar. What is term used for the effect on the cells ?
What would happen to the leaves of a plant that transpires more water than its absorption in the roots?
____________ regions are present in a typical root.
How many regions are there in a typical root?
Give other name of epidermal cells in roots of plants.
