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Rate of Transpiration
Rate of Transpiration
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1)
What is the process of evaporation of water into the atmosphere from the aerial parts of plants called?
Translocation
Respiration
Transpiration
Photosynthesis
2)
Which one of the following affects the rate of transpiration? (i) Light, (ii) Temperature, (iii) Humidity, (iv) Wind
i and ii
i, ii, iii and iv
ii and iii
i, ii and iv
3)
How does humidity affect the rate of transpiration?
The higher the relative humidity of the outside atmosphere decreases the rate of transpiration.
Higher relative humidity of the outside atmosphere increases the rate of transpiration.
Lower relative humidity of the outside atmosphere decreases the rate of transpiration.
Remains the same in either increase or decrease of humidity.
4)
Out of the following, which is not the correct statement?
Distribution, number, size and type of stomata are same in every plant.
Size and type of stomata is different in different plants.
Number of stomata is different in different plants.
Distribution of stomata is different in different plants.
5)
How does temperature affect the rate of transpiration?
Plants transpire more rapidly at higher temperatures.
Transpiration rate increases at lower temperatures.
Transpiration won’t happen at higher temperatures.
Transpiration rate decreases at higher temperatures.
6)
Dry cobalt chloride paper turns blue to __________ in colour in the presence of water.
Black
Green
White
Pink
7)
A leaf from a plant is covered with cobalt chloride paper to study rate of transpiration, as shown in the figure below. Which one of the following is the correct result?
8)
An experiment is being done using cobalt chloride paper to study the rate of transpiration in upper and lower surface of the leaves. Results are shown in the below image. The time taken to change blue cobalt chloride paper to pink in the above experiment is noted in the image. Now, conclude that which side of the leaf has more stomata.
Lower surface.
Can’t tell.
Equal number of stomata on both surfaces.
Upper surface.