Advertisements
Advertisements
Question
In a tall tree, which force is responsible for pulling water and minerals from the soil?
Options
Gravitational force
Transportation force
Suction force
Conduction force
Advertisements
Solution
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.
APPEARS IN
RELATED QUESTIONS
The xylem in plants is responsible for ______.
Water absorption through roots can be increased by keeping the plants ______.
What is the need of special tissues or organs for transport of substances in plants and animals?
Match the following.
| 1. Symplastic pathway | (a) Leaf |
| 2. Transpiration | (b) Plasmodesmata |
| 3. Osmosis | (c) Pressure in xylem |
| 4. Root Pressure | (d) Pressure gradient |
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.
Why is transpiration important for plants?
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 |
