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प्रश्न
Explain why:
Raisins swell up in water.
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उत्तर
The raisins swell up when placed in water because the water is hypotonic as compared to the raisins so the water enters inside the raisins as a result of endosmosis.
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संबंधित प्रश्न
The phenomenon of loss of water through a cut stem or injured part of plant is called ___________.
Differentiate between the following:
Guttation and bleeding
Given below is the diagram of a cell as seen under the microscope after having been placed in a solution:

(i) What is the technical term used for the state/condition of the cell given above?
(ii) Give the technical term for the solution in which the cell was placed.
(iii) Name the parts numbered 1 to 4.
(iv) Is the cell given above a plant cell or an animal cell ? Give two reasons in support of your answer as evident from the diagram.
(v) What would you do to bring this cell back to its original condition?
Name the following:
Root hairs are the extension of which cells.
Describe structure of root hair.
____________plants like orchids absorb water vapours from air with the help of epiphytic roots having special tissue called velamen.
How many regions are there in a typical root?
The tubular, colorless delicate prolongations of epidennal cells are seen in which region of root in plants?
Give other name of epidermal cells in roots of plants.
