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प्रश्न
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उत्तर
Xylem
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:
In ascent of sap water reaches upwards ____________
Root hairs become flaccid, when fertilizers are added to the moist soil around it. Explain.
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.
Name the following:
Water is absorbed from the soil by which part.
Water which is absorbed by roots is transported to aerial parts of the plant through ______
How many regions are there in a typical root?
Epiphytic plants like orchids absorb water vapours from air with the help of ______ having special tissue called velamen.
How many regions are there in a typical root?
The unbranched root hair in plants is formed from ____________.
