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प्रश्न
Name the following:
Root hairs are the extension of which cells.
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उत्तर
Epidermal cell
संबंधित प्रश्न
Give reason for the following:
If you uproot a plant from the soil, its leaves soon wilt.
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.
A few RBC’s were kept in three test tubes containing isotonic, hypotonic and hypertonic solutions. What will be the expected observations after a few hours? Explain.
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 guidelines ‘1’ to ‘5’
(ii) Is the root hair cell unicellular or multi-cellular?
(iii) Draw a labeled diagram of the root hair cell as it would appear if some fertilizer is added to the soil close to it.
(iv) Name the process responsible for the entry of water molecules from the soil into A1 and then A2.
(v) What pressure is responsible for the movement of water in the direction indicated by arrows?
(vi) How is this pressure set up?
Multiple Choice Question:
Water will be absorbed by the root hairs when:
Inner layer of root hair is made up of ______.
Which part of the root helps in maximum absorption of water and minerals?
How many regions are there in a typical root?
Look at Figure. Draw another figure of the same set-up as would be observed after a few hours.
