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प्रश्न
How is root hair structurally adapted for absorption of water from the soil?
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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.
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संबंधित प्रश्न
Multiple Choice Question:
Put a tick mark (✓) against the correct alternative in the following statement:
The root-hairs are suited for absorbing water from the soil because:
The diagram given below represents the results of an experiment conducted on two freshly taken leafy shoots of a herbaceous plant. The lower ends of the shoots dip in ordinary water.
(i) What is the aim of the experiment?
(ii) Some parts of the stem in both the shoots have been removed. Name the conducting tissue in shoot (a) and in shoot (b) that has been removed.
(iii) What are the results of this experiment?
Give Technical Term for the following.
Tissue which transports manufactured food from leaves to other parts of the plant.
In the zone of absorption, epidermal cells form unicellular hair-like extensions called ________.
Root hair is ________ extension of epiblema cells.
Define: Root hair
Draw a neat and labelled diagram of Root hair.
____________ regions are present in a typical root.
Roots of the plants absorb water from the soil through the process of ____________.
Aquatic animals like fish excrete their wastes in gaseous form as ______.
