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प्रश्न
Draw a magnified view of the root-hair, and describe, how it helps in the absorption of water from the soil.
उत्तर
Give below is a magnified view of a root-hair. It is a long protuberance of a cell. This cell contains a fluid called cell sap which is more concentrated than the surrounding soil water.
The root hair is covered by a very thin ceil membrane that allows water molecules to pass through, but prevents the larger molecules. So the water from the soil passes into the root hairs by osmosis.
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संबंधित प्रश्न
What would happen to the root hair of a potted plant if the soil was watered with an extremely concentrated solution of sodium chloride?
Choose the correct answer:
An example of a selective permeable membrane is __________
Mention whether the following statement is true (T) or false (F) and give explanation in support of your answer.
Dry seeds when submerged in water swell up due to endosmosis.
The diagram below represents a layer of epidermal cells showing a fully grown root hair. Study the diagram and answer the questions that follow:
The root hair cell is in a turgid state. Name and explain the process that caused this state.
Name the following:
Water is absorbed from the soil by which part.
Multiple Choice Question:
In soil, water available for absorption by root is ______.
Describe structure of root hair.
Plasma Membrane is ______.
Paheli uprooted a rose plant from the soil. Most of the root tips, with root hairs, got left behind in the soil. She planted it in a pot with new soil and watered it regularly. Will the plant grow or die? Give a reason for your answer.
