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प्रश्न
How is transpirational pull caused?
उत्तर
As the 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 (cohesion), and thus produce a continuous column of water through the stem. Thus, a continuous column of water is produced through the stem of the plant.
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संबंधित प्रश्न
Name the conducting tissue in plants which is made of dead cells.
Very short answer question.
In which conditions transpiration pull will be affected?
Answer the following question.
Discuss theories of water translocation.
Long answer question.
Explain cohesion theory for translocation of water.
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:
Root pressure theory was proposed by ______.
Attraction of water molecules to polar surface is known as ______.
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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.
