LABORATORY REVIEW
TRANSPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the amount of added fertilizer
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the rate of transpiration
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the type of fertilizer
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the variety/species of tomato plant
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Detailed explanation-1: -Factors Affecting the Rate of Transpiration In the previous section, we learnt that the rate of transpiration is affected by light intensity, temperature, air movement (wind) and humidity. We can use a potometer to investigate how these factors affect the rate of transpiration.
Detailed explanation-2: -Transpiration is the evaporation of water from the surface of leaves through stomata. The phenomenon of transpiration can be explained by Bell jar experiment.
Detailed explanation-3: -The rate of transpiration can be calculated by measuring the distance travelled by an air bubble in a capillary tube over a given time. The faster the bubble moves, the greater the rate of water uptake – and so the greater the assumed rate of transpiration.