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प्रश्न
The process by which root hairs absorb water from the soil.
Give One Word Answer.
The process by which root hairs absorb water from the soil.
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उत्तर
Osmosis
APPEARS IN
संबंधित प्रश्न
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 diagram given below and answer the questions that follow:
- Name the process being studied in the above experiment.
- Explain the process mentioned in (a) above
- Why is oil placed over water?
- What do we observe with regard to the level of water when this set-up is placed in (1) bright sunlight, (2) humid conditions and (3) windy days?
- Mention any three adaptations found in plants to foster the process mentioned in (a) above
Choose the correct answer:
Meaning of ascent of sap is ____________
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column I | Column II |
| (i) Diffusion | (a) The exit or flow of water from the cell to the outer environment. |
| (ii) Xylem | (b) The shrinkage of protoplasm when the cell is kept in a hypertonic solution. |
| (iii) Root pressure | (c) The tissue through which water and mineral salts move upward in a plant. |
| (iv) Isotonic solution | (d) Two solutions which have equal osmotic pressure. |
| (v) Exosmosis | (e) The process by which the molecules of perfume spread in the room when the bottle is open. |
| (vi) Osmosis | (f) The process by which roots absorb water from the soil. |
| (vii) Plasmolysis | (g) The pressure by which water rises up to some feet in a lofty tree. |
| (viii) Hypotonic solution | (h) The concentration of the solution when lower than that of the cell sap. |
Multiple Choice Question:
In soil, water available for absorption by root is ______.
Draw a neat and labelled diagram of the Root tip showing the root hair zone.
What would happen to the leaves of a plant that transpires more water than its absorption in the roots?
Minerals cannot be passively absorbed by the roots.
Which part of the root helps in the maximum absorption of water and minerals?
Name the following:
Unicellular outgrowths from the epidermis of roots.
