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प्रश्न
In a tall tree, which force is responsible for pulling water and minerals from the soil?
पर्याय
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
The xylem in plants is responsible for ______.
Why is transport of materials necessary in a plant or in an animal? Explain.
What is the other name of main vein?
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.
The site of photosynthesis in the cells of a leaf is ____________.
Why is transpiration important for plants?
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 |
