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Question
How is root hair structurally adapted for absorption of water from the soil?
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Solution
(i) The root hair represents a large surface area in contact with the soil particle.
(ii) The minute root hair can penetrate between the soil particles and when it comes in contact with soil water, the cell membrane allows efficient entry of water into the root.
(iii) The cytoplasm and the vacuoles also help in this water absorption by osmosis.
RELATED QUESTIONS
The phenomenon of loss of water through a cut stem or injured part of plant is called ___________.
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.
The diagram given below represents a plant cell after being placed in a strong sugar solution. Guidelines 1 to 5 indicate the following:
1. Strong sugar solution
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3. Protoplasm
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Study the diagram and answer the questions that follow:
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(v) Name any one feature of this plant cell which is not present in animal cells.
Study the experimental setup in the figure and then answer the question that follow.
What will you observe in the setup after about half an hour? Give reasons for your answer.
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Xylem is the water-conducting tissue in plants.
A thin strip of epidermal cells of a leaf was observed in a drop of water. They all looked turgid and normal.
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Define: Root hair
Root hairs are ______
In soil which of the following type of water is available for absorption by plant roots?
