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प्रश्न
What is transpirational pull?
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उत्तर
As water is lost from the leaf surface by transpiration, more water molecules are pulled up due to the tendency of water molecules to remain joined, i.e., cohesion. This produces a continuous column of water throughout the stem, which is known as the 'transpiration pull'.
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संबंधित प्रश्न
Name the conducting tissue in plants which is made of dead cells.
Very short answer question.
Which type of plants have negative root pressure?
Very short answer question.
In which conditions transpiration pull will be affected?
Answer the following question.
Discuss theories of water translocation.
Explain capillarity theory.
Find the physical process NOT involved in absorption of water in plants.
The process in which the loss of water takes place in the form of water vapour through stomata is called:
Arrange and rewrite the terms in group in correct order to be in a logical sequence, beginning with the term that is underlined:
Water vapour, Soil water, Leaves, Ascent of Sap.
What are the four main forces which contribute to the ascent of sap (upward movement of water and minerals) ? Name them and explain in short.
How is transpirational pull caused?
