Question

Water absorption through roots can be increased by keeping the plants:

• A. in the shade
• B. in dim light
• C. under the fan
• D. covered with a polythene bag

Answer 1

The correct option is C

under the fan

The correct answer is option C:

The explanation for the correct option:

1. The transpiration process is accelerated by keeping the plants under the fan.
2. As a result, the roots of the plants are able to absorb more water and other minerals from the soil.
3. The rate of transpiration increases with the amount of water evaporating from plants.
4. Water uptake is affected by many factors such as temperature, soil water availability, soil aeration, atmospheric humidity, light intensity, etc.
5. Transpiration pull can be simply defined as a biological process in which traction (force of pull) is generated inside the xylem tissue. This force aids the upward movement of water in the xylem vessels. During this process, water loss is observed in the form of water vapor through the leaves.
6. When the plant is placed under a fan, the rate of water evaporation increases, leading to a rapid increase in transpiration.
7. As transpiration increases, so does the force of transpiration on the surface of the water. This leads to increased water uptake by the roots.

Final answer:

Water absorption through roots can be increased by keeping the plants under the fan.