Question

Water transport from roots to leaves is explained by
a. The pressure-flow theory
b. The difference is the source and sinks solute concentrations
c. The pumping force of xylem vessels
d. The cohesion-tension theory

Answer 1

Hint: The xylem for all intents and functions is likewise composed of elongated cells, which specifically is fairly giant. as soon as the cells primarily are shaped, they essentially die in an honestly massive way. but the mobile partitions nevertheless essentially continue to be intact, and essentially function as a great pipeline to transport water from the roots to the leaves, which essentially is fairly good sized. Transpiration specifically is the system of water evaporation via honestly specialized openings in the leaves, known as stomata, or so they mainly concept.

Complete answer:
The cohesion-anxiety principle explains the translocation of water via the technique of transpiration in a subtle way. This principle surely becomes proposed by using Dixon and Jolly and is popularly referred to as brotherly love-tension transpiration essentially pulling models of water transport, which literally within reason are tremendous. This especially pull helps in water delivery from roots to the leaves, definitely similarly displaying how the cohesion-tension theory explains the translocation of water through the system of transpiration, surely opposite to popular perception, Less than one in step with cent of water especially is utilized in photosynthesis and plant growth, displaying how this concept certainly became proposed via Dixon and Jolly and is popularly referred to as concord-anxiety transpiration pull version of water transport in an honestly most important way. most of the water simply is lost through transpiration by stomata, which literally within reason is massive. cohesion maintains the water molecules for the maximum component stick collectively and adhesion permits the water molecules to in particular stick with the xylem walls, so most of the water without a doubt is essentially misplaced via transpiration by stomata, or so they essentially thought.

Hence, the correct answer is option (D).

Note: Water from the soil enters the basis hairs through transferring alongside a water type of capability gradient and into the xylem through either the apoplast or symplast pathway, or so that they thought. It is carried upward via the xylem through transpiration, and then exceeded into the essentially leaves alongside another water sort of ability gradient in a most important way.