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प्रश्न
Choose the correct answer:
Exudation or bleeding is associated with ___________
पर्याय
capillarity
imbibition
hydrostatic pressure in the root
pulsation in the innermost layer of cortex
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उत्तर
Exudation or bleeding is associated with hydrostatic pressure in the root
APPEARS IN
संबंधित प्रश्न
Draw a magnified view of the root-hair, and describe, how it helps in the absorption of water from the soil.
Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer.
If the phloem of a twig is removed keeping the xylem intact, the leaves of a twig wilt.
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.
A thin strip of epidermal cells from the fleshy scales of an onion bulb was examined in a drop of water, under a microscope. All the epidermal cells looked alike and the figure alongside represents one of them. The thin strip was then transferred to a drop of strong sugar solution and re-examined under the microscope after about five minutes.
(i) Make a sketch of one of the epidermal cells, as it might appear after immersion in a strong sugar solution. Label any two parts which have undergone a change.
(ii) Give the scientific term for the change shown in Q.(i) above.
(iii) What would you do to bring this cell back to its original condition?
(iv) Give the scientific term used for the recovery of the cell as a result of the step taken in Q.(iii) above.
Multiple Choice Question:
The most widely accepted theory for ascent of sap is ______.
Inner layer of root hair is made up of ______.
Trace the pathway followed by water molecules from the time it enters a plant root to the time it escapes into the atmosphere from a leaf.
Identify the part of the plants which is responsible for maximum absorption of water.
The tubular, colorless delicate prolongations of epidennal cells are seen in which region of root in plants?
