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1.
Which one of the following is the reason for higher rate of transpiration in Sorghum as compared to maize?
2.
If turgidity of a cell surrounded by water increases, the wall pressure will
3.
In plants; which of the following are/is translocated through phloem?
4.
Root pressure is due to
5.
What is depicted by the given diagram below?
6.
Choose correct statements regarding the flow of sap in xylem?
I. Flow is driven by higher concentration of sugar in the vessel elements
II. Flow from root to twigs and leaves would be reduced if leaves are removed
III. In the morning, sap begins to flow first in the twig then in trunk
IV. Rapid flow of water put tissues under pressure much more than atmospheric pressure
I. Flow is driven by higher concentration of sugar in the vessel elements
II. Flow from root to twigs and leaves would be reduced if leaves are removed
III. In the morning, sap begins to flow first in the twig then in trunk
IV. Rapid flow of water put tissues under pressure much more than atmospheric pressure
7.
Stomatal opening is regulated by
8.
The direction of movement in phloem is ...A... and that of xylem is ...B... .
Choose the correct pair of options
Choose the correct pair of options
9.
Which of the following theories for ascent of sap was proposed by an eminent Indian scientist J C Bose?
10.
The potential energy of water is referred as