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प्रश्न
What part is played by the following in the uptake of water into the root hair?
The cell wall
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उत्तर
The cell wall separates the two solutions, cell sap and soil solution and is permeable, which means it allows water to enter the root hair cells by endosmosis.
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संबंधित प्रश्न
Multiple Choice Question:
Put a tick mark (✓) against the correct alternative in the following statement:
The root-hairs are suited for absorbing water from the soil because:
State whether the following statement is true or false. Rewrite the false statement correctly.
Water absorption mainly occurs through the root-hair.
How does movement and absorption of water take place through the roots?
The diagram below represents a layer of epidermal cells showing a fully grown root hair. Study the diagram and answer the questions that follow:
Mention one distinct difference between the parts labelled A and B.
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.
Name the following:
The solution outside the cell having lower solute concentration than the fluids.
Multiple Choice Question:
In soil, water available for absorption by root is ______.
In soil which of the following type of water is available for absorption by plant roots?
Root hair is a cytoplasmic extension of ______.
What is peculiarity of epiphytic plants like orchids?
