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Question
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.
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Solution
A root hair gets turgid because of the absorption of water from the surrounding. Absorption of water by root hair is achieved by the process of osmosis. The concentration of water in the surrounding is more than that of the interior of the cell; this causes the water from the surrounding to move in because of endosmosis.
RELATED QUESTIONS
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.
Give reason for the following:
If you uproot a plant from the soil, its leaves soon wilt.
Choose the correct answer:
Swelling of wooden doors during rains is caused by ___________
Choose the correct answer:
Wilting of plants occurs when ____________
The below figure shows a root hair:
(i) Label the parts 1 to 4.
(ii) What is the role of part 4?
(iii) Why is the root hair one-celled?
(iv) What will happen to the root hair if some fertilizer is added to the soil near the root hair?
Give Technical Term for the following.
Tissue which transports manufactured food from leaves to other parts of the plant.
Multiple Choice Question:
In soil, water available for absorption by root is ______.
Describe structure of root hair.
Inner layer of root hair is made up of ______.
Roots of the plants absorb water from the soil through the process of ____________.
