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प्रश्न
Name the following:
Root hairs are the extension of which cells.
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उत्तर
Epidermal cell
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संबंधित प्रश्न
The process by which root hairs absorb water from the soil.
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.
What would happen to the root hair of a potted plant if the soil was watered with an extremely concentrated solution of sodium chloride?
Mention whether the following statement is true (T) or false (F) and give explanation in support of your answer.
Dry seeds when submerged in water swell up due to endosmosis.
Study the experimental setup in the figure and then answer the question that follow.
What will you observe in the setup after about half an hour? Give reasons for your answer.
Draw a diagram of the root hair cell as it would appear when a concentrated solution of fertilizers is added near it.
Multiple Choice Question:
In soil, water available for absorption by root is ______.
Multiple Choice Question:
The most widely accepted theory for ascent of sap is ______.
Root hair occurs in the zone of ____________.
