PLANTS
TRANSPORT IN PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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as the humidity increase, the rate oftranspiration decrease
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as the humidity increase, the rate oftranspiration increase
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as the humidity decrease the rate oftranspiration slightly decrease
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the humidity is not affecting the rates oftranspiration
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Detailed explanation-1: -The transpiration rate is inversely proportional to the humidity in air. High humidity reduces the outward diffusion of water through the stomata. As a result, less water is lost, and lower transpiration rates are observed.
Detailed explanation-2: -As the relative humidity of the air surrounding the plant rises the transpiration rate decreases. It is easier for water to evaporate into dryer air than into more saturated air. Increased movement of the air around a plant will result in a higher transpiration rate.
Detailed explanation-3: -When the relative humidity is high, the atmosphere contains more moisture. This lowers the driving force for transpiration. Lower relative humidity levels correspond to less moisture in the atmosphere and thus a higher driving factor for transpiration.
Detailed explanation-4: -When the moisture carrying capacity of the air increases, there is more space left for new water molecules to accommodate in the air. This increases the rate of transpiration through plants. Similarly, when the light intensity decreases, the rate of transpiration also decreases.
Detailed explanation-5: -The rate of transpiration decreases with decrease in temperature and decrease in light intensity.