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प्रश्न
The figure given below is a diagrammatic representation of a part of the cross section of the root in the root hair zone. Study the same and then answer the questions that follow
(i) Name the parts indicated by the guidelines 1 to 4.
(ii) Which is the process that enables the passage of water from the soil into the root hair?
(iii) Name the pressure that is responsible for the movement of water in the direction indicated by the arrows. Define it.
(iv) Due to an excess of this pressure sometimes drops of water are found along the leaf margins of some plants especially in the early mornings. What is the phenomenon called?
(v) Draw a well labelled diagram of the root hair cell as it would appear if an excess of fertiliser is added to the soil close to it.
उत्तर
(i) 1: Root hair, 2: Soil particle, 3: Xylem vessel, 4: Vacuoles
(ii) Osmosis is the process which enables the passage of water from the soil into root hair.
(iii) Root pressure is responsible for the movement of water. It is the pressure developed in the roots because of the inflow of water.
(iv) Guttation
(v) 
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संबंधित प्रश्न
Draw a magnified view of the root-hair, and describe, how it helps in the absorption of water from the soil.
What part is played by the cell wall?
Choose the correct answer:
Exudation or bleeding is associated with ___________
Give Technical Term for the following.
Tissue which transports manufactured food from leaves to other parts of the plant.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Xylem is the water-conducting tissue in plants.
Part of the root that absorbs water from the soil is ______.
In soil which of the following type of water is available for absorption by plant roots?
Which of the following are the components of cell wall of root hair?
Which part of the root helps in maximum absorption of water and minerals?
Roots of the plants absorb water from the soil through the process of ____________.
