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प्रश्न
What part is played by The cytoplasm in the uptake of water into the root hair?
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उत्तर
The cytoplasm contains vacuoles having cell sap or solution of mineral salts. This cell sap being more concentrated than the soil solution help in water absorption by endosmosis.
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संबंधित प्रश्न
How does movement and absorption of water take place through the roots?
Concentration of mineral nutrient elements is higher inside the root hairs than in the surrounding soil. How do roots take them in from the soil?
Study the experimental setup in the figure and then answer the question that follow.
What is meant by 'semipermeable membrane'?
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.
Draw a cross-section of root showing association of soil particles with root hairs.
The diagram given below represents the result of an experiment conducted on two freshly taken shoots of a green herbaceous plant. The lower ends dip in the 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.
The tissue responsible for the ascent of sap in plants.
Name the following:
Name the process by which intact plants lose water in the form of droplets.
Explain about the factors that affect water absorption.
