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प्रश्न
In a tall tree, which force is responsible for pulling water and minerals from the soil?
विकल्प
Gravitational force
Transportation force
Suction force
Conduction force
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उत्तर
Suction force
Explanation:
The root cells absorb water and mineral salts continuously from the soil. The evaporation of water from the leaf surfaces during the process of transpiration produces a suction force (transpiration pull) that causes the water to move upwards.
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संबंधित प्रश्न
What substance/substances are transported in plants by:
xylem vessels and tracheids?
What is the need of special tissues or organs for transport of substances in plants and animals?
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.
How do plants absorb water? Explain.
When any dry plant material is kept in water, they swell up. Name and define the phenomenon involved in this change.
The site of photosynthesis in the cells of a leaf is ____________.
Assertion: Resins and gums are stored in old xylem tissue in plants.
Reason: Resins and gums facilitate transport of water molecules.
These consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:
Assertion: Amphibians can tolerate mixing of oxygenated and deoxygenated blood.
Reason: Amphibians are animals with two chambered heart
Match the pairs.
| Group ‘A’ | Group ‘B’ | ||
| (1) | Parasitic plant | (a) | Mushroom |
| (2) | Insectivorous plant | (b) | Lichen |
| (3) | Saprophytic plant | (c) | Drosera |
| (4) | Symbiotic plant | (d) | Cuscuta |
Match the pairs:
| Group ‘A’ | Group ‘B’ |
| (1) Parasitic plant | (a) Mushroom |
| (2) Insectivorous plant | (b) Lichen |
| (3) Saprophytic plant | (c) Drosera |
| (4) Symbiotic plant | (c) Drosera |
