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Question
The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental setup was placed in bright sunlight. Study the diagram and answer the following questions.
When the weight of the test tubes A and B is taken before and after the experiment, what change is observed? Justify.
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Solution
Weight of test tube A before the experiment was more than its weight after the experiment. This is because water from test tube A has evaporated due to transpiration.
Weight of test tube B remains the same before and after the experiment, because no loss of water occurs in test tube B.
RELATED QUESTIONS
Describe an experiment to show that the plant loses water through its leaves.
Briefly explain how the rate of transpiration is affected by
Intensity of light
Give Reasons for the following:
Young plants wilt on a hot sunny day.
Name the following:
Holes present on the surface of the stems and twigs for transpiration.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Transpiration takes place only in green plants
Write the functional activity of the following structure:
Cuticle
Transpiration is significant for all except ______.
