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प्रश्न
Study the experimental setup in the figure and then answer the question that follow.
What is meant by 'semipermeable membrane'?
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उत्तर
A semipermeable membrane is a membrane which allows the passage of molecules selectively. It allows a solvent such as water molecules to pass through it freely but prevents the passage of the solute (sugar or salt molecules in solution).
संबंधित प्रश्न
The phenomenon of loss of water through a cut stem or injured part of plant is called ___________.
What part is played by the cell wall?
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.
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.
Give Technical Term for the following.
Phenomenon of absorption of water by surface attraction.
Name the following:
Root hairs are the extension of which cells.
Root hairs are ______
Which part of the root helps in the maximum absorption of water and minerals?
In soil which of the following type of water is available for absorption by plant roots?
Water in the root enters due to ______.
