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प्रश्न
Does transpiration serve any useful function in the plants? Explain.
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उत्तर
- The leaves of the plants continuously transpire due to which excess water is thrown out. This loss of water is compensated by water transport from the roots.
- Transpiration in the leaves generates traction (pull) inside the plant, due to which water reaches the top of the plant, and the leaves of the plant keep getting water and minerals.
- Transpiration is mainly responsible for the loss of water that is absorbed by the plants. However, it is important for plants as it helps in the movement of water to the top of tall trees.
- As a result, it helps in the distribution of water throughout the plant body. It also helps in cooling the plant.
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संबंधित प्रश्न
Water absorption through roots can be increased by keeping the plants ______.
What is the other name of main vein?
Crossword Puzzle
ACROSS
1. Special tubes through which food material is carried inside the plants body.
3. Channel through which movement of water and minerals occurs.
4. Red coloured fluid inside blood vessels.
5. Loss of water in vapour from the leaves.
9. Four chambered organ located in the chest cavity.
10. Blood vessels which bring blood into the heart. DOWN
2. Red coloured pigment which is a carrier of oxygen.
6. Blood vessels which carry blood from the heart.
7. Blood cells which help in clotting of blood.
8. Process by which water passes into the root hair.
Match the following.
| 1. Symplastic pathway | (a) Leaf |
| 2. Transpiration | (b) Plasmodesmata |
| 3. Osmosis | (c) Pressure in xylem |
| 4. Root Pressure | (d) Pressure gradient |
The phloem is responsible for the translocation of food.
When any dry plant material is kept in water, they swell up. Name and define the phenomenon involved in this change.
Plants use the energy stored in ATP to accomplish the process of transportation of:
Assertion: Resins and gums are stored in old xylem tissue in plants.
Reason: Resins and gums facilitate transport of water molecules.
In a tall tree, which force is responsible for pulling water and minerals from the soil?
We need to water the soil in plants on a regular basis but it ultimately reaches the leaves of the plant. Explain how this takes place.
