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प्रश्न
Choose the correct answer:
Wilting of plants occurs when ____________
विकल्प
phloem is blocked.
xylem is blocked.
a few old roots are removed.
both xylem and phloem are blocked.
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उत्तर
Wilting of plants occurs when xylem is blocked
APPEARS IN
संबंधित प्रश्न
What are root hair? Mention the function performed by the root hair.
What part is played by The cytoplasm in the uptake of water into the root hair?
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.
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. |
Part of the root that absorbs water from the soil is ______.
What would happen to the leaves of a plant that transpires more water than its absorption in the roots?
Epiphytic plants like orchids absorb water vapours from air with the help of ______ having special tissue called velamen.
The unbranched root hair in plants is formed from ____________.
Roots of the plants absorb water from the soil through the process of ____________.
