Advertisements
Advertisements
प्रश्न
Draw a diagram of the root hair cell as it would appear when a concentrated solution of fertilizers is added near it.
उत्तर
APPEARS IN
संबंधित प्रश्न
Explain the mechanism of closing and opening of the stomata.
Three plants (a), (b) and (c) were placed in beakers containing coloured water. The water in each beaker was covered with a layer of oil. The leaves were removed from plant (b), while plant (c) was exposed to strong light.
(i) In which plant, (a), (b) or (c) would the water move up the fastest?
(ii) In which plant (a), (b) or (c), would the water move up slowly?
(iii) Why was the water covered with a layer of oil?
(iv) What is being investigated by this experiment?
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?
Draw a cross-section of root showing association of soil particles with root hairs.
Give Technical Term for the following.
The tissue responsible for the ascent of sap in plants.
How many regions are there in a typical root?
Draw a neat and proportionate diagram of root hair and label mitochondria, nucleus and vacuole.
Name the following:
Unicellular outgrowths from the epidermis of roots.
