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प्रश्न
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:
Why was the pot covered with a plastic sheet?
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उत्तर
The pot is covered with a plastic sheet to prevent evaporation of water from the soil.
संबंधित प्रश्न
(a) State whether the following statement are True or False.
(b) Rewrite the false statement in the correct form by changing either the first or the last word only.
Most transpiration occurs at midnight.
- The diagram given alongside is an apparatus used to study a particular phenomenon in plants.
- Name the apparatus.
- What is it used for?
- What is the role played by the air bubble in this experiment?
- Of what use is the reservoir?
- What happens to the movement of the air-bubble if the apparatus is kept
- in dark,
- in sunlight,
- in front of fan?
Give a reason in each case.
Comment on the following statement:
A well-watered potted plant shows wilting of leaves on a hot sunny day.
Litmus paper is used to demonstrate transpiration from the leaves of the green plant.
Given alongside is the diagram of an experimental set-up to demonstrate a certain phenomenon in plants.
Would it make a difference if the experimental set-up is kept in bright sunshine?
Explain the term:
Transpiration
Boojho’s uncle was hospitalised and put on dialysis after a severe infection in both of his kidneys.
When does it become necessary to take such a treatment?
Excessive transpiration is due to ______.
A root hair is derived from ______ cell.
The process of evaporative loss of water from the aerial parts of a plant is ______.
