Advertisements
Advertisements
प्रश्न
What is transpirational pull?
Advertisements
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.
Explain capillarity theory.
Explain the term:
Ascent of sap
Long answer question.
Explain cohesion theory for translocation of water.
Oozing of sap from the cut end of herbaceous plants is due to ____________.
The process in which the loss of water takes place in the form of water vapour through stomata is called:
Attraction of water molecules to polar surface is known as ______.
In vascular plants, growth takes place due to
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?
