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प्रश्न
Which of the following is an external factor affecting the rate of transpiration?
विकल्प
Number of stomata
Exposed surface
Humidity
Sunken stomata
उत्तर
Humidity
Explanation:
The atmospheric humidity determines the rate of transpiration. The diffusion of water vapour from substomatal space is slow if the humidity is greater than that.
संबंधित प्रश्न
Under what conditions do plant transpire more quickly?
Briefly explain, how transpiration helps in upward conduction of water in plants?
Give a reason.
What happens to the movement of the air-bubble if the apparatus shown above is kept in dark.
Given alongside is the diagram of an experimental set-up to demonstrate a certain phenomenon in plants.
What is the purpose of the spring balance in the set-up?
What causes the opening and closing of guard cells of stomata during transpiration?
Complete the following by choosing the proper option.
Stomata : Transpiration :: Hydathode : ____________.
Write a note on Transpiration.
The lower surface of leaf will have more number of stomata in a ______.
Do different species of plants growing in the same area show the same rate of transpiration at a particular time? Justify your answer.
