LABORATORY REVIEW
TRANSPIRATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
the number of leaves
|
|
|
the number of flowers
|
|
|
the number of stomata
|
|
|
the amount of water in the soil
|
Detailed explanation-1: -Sunlight: During daytime the rate of transpiration is faster. This is because the stomata remain open to allow inward diffusion of carbon dioxide for the process of photosynthesis. During night time the stomata remain closed and thus transpiration hardly occurs.
Detailed explanation-2: -Transpiration is closely related to stomata. Nearly 97 % of water from plants is lost through stomatal transpiration, so the more stomata, the higher the transpiration rate [3].
Detailed explanation-3: -Transpiration rate increases with the velocity of wind and intensity of light.
Detailed explanation-4: -Temperature, wind speed, humidity, stomatal density.
Detailed explanation-5: -Conditions such as high light intensity result in an increased stomatal index, whereas high CO2 concentrations or low humidity can result in a reduction in stomatal index.