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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'.
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?
Answer the following question.
Discuss theories of water translocation.
Explain capillarity theory.
Find the physical process NOT involved in absorption of water in plants.
Oozing of sap from the cut end of herbaceous plants is due to ____________.
Root pressure theory was proposed by ______.
Attraction of water molecules to polar surface is known as ______.
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?
