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Question
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.
Options
True
False
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Solution
This statement is false.
Correct statement: The cell wall of the root cell is a fully permeable membrane.
Explanation:
Because cell "membranes" are differentially permeable, and cell walls are fully permeable.
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RELATED QUESTIONS
Choose the correct answer:
Absorption of water from soil takes place by __________
The alongside diagram A shows a root hair growing through the soil particles. Diagram B is the root hair of an aquatic plant.
(i) Name the parts 1,2,3.
(ii) Name two substances which enter the root hair. What are their uses?
(iii) By what process do these substances enter the root hair?
(iv) Account for the different shapes of root hairs in the two diagrams.
Draw a cross-section of root showing association of soil particles with root hairs.
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.
Give Technical Term for the following.
Phenomenon of absorption of water by surface attraction.
Multiple Choice Question:
Water will be absorbed by the root hairs when:
Inner layer of root hair is made up of ______.
Water which is absorbed by roots is transported to aerial parts of the plant through ______
Look at Figure. Draw another figure of the same set-up as would be observed after a few hours.
