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प्रश्न
उत्तर
The root hairs become flaccid when fertilisers are added to the moist soil around them because fertilisers with moist soil become hypertonic which causes plasmolysis in the cells of the root hair. The turgidity is lost and the cell becomes flaccid.
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संबंधित प्रश्न
Concentration of mineral nutrient elements is higher inside the root hairs than in the surrounding soil. How do roots take them in from the soil?
Choose the correct answer:
Which tissue makes passage for ascent of sap?
Mention whether the following statement is true (T) or false (F) and give explanation in support of your answer.
Dry seeds when submerged in water swell up due to endosmosis.
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?
Give Technical Term for the following.
Phenomenon of absorption of water by surface attraction.
Write a note on the morphological structure of the root.
____________plants like orchids absorb water vapours from air with the help of epiphytic roots having special tissue called velamen.
Identify the part of the plants which is responsible for maximum absorption of water.
The tubular, colorless delicate prolongations of epidennal cells are seen in which region of root in plants?
Water in the root enters due to ______.
