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प्रश्न
Choose the correct answer:
In ascent of sap water reaches upwards ____________
पर्याय
In the form of a solid column.
in the form of a fragile column.
to some places in the form of solid and to some places in liquid form.
none of the above.
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उत्तर
In ascent of sap water reaches upwards none of the above
APPEARS IN
संबंधित प्रश्न
How does movement and absorption of water take place through the roots?
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
The cell wall of the root cell is a differentially permeable membrane.
How is root hair adapted for the absorption of water from the soil?
Grapes shrink when immersed in a very strong sugar solution.” Explain.
Name the following:
Root hairs are the extension of which cells.
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. |
Outer layer of root hair is made up of ________.
What would happen to the leaves of a plant that transpires more water than its absorption in the roots?
Which plant does tissue transport water and minerals from the roots to the leaf?
Look at Figure. Draw another figure of the same set-up as would be observed after a few hours.
