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प्रश्न
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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उत्तर
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.
संबंधित प्रश्न
Given below is an apparatus which has setup to investigate a physiological process in plants. The setup was placed in bright sunlight. Answer the questions that follow:
Draw a neat, labelled diagram of a stomatal apparatus.
Answer the following (only in few words);
Give one important difference between transpiration and evaporation.
What are lenticels? Where are they found?
Explain the Term
Lenticel
Differentiate Between Cuticular and Lenticular transpiration.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
More transpiration occurs from the upper surface of a leaf.
Write the functional activity of the following structure:
Lenticels
Write the functional activity of the following structure:
Guard cells
