Question

What factors determine the ascent of xylem sap in a plant?

Answer 1

the strong cohesive force, continuity of the water coloum in the capillaries of xylem vessel elements and transpirtation pull are responsible for the ascent of SAP

Answer 2

Answer:

$\rm\underline\red{ Physical \: factors \: responsible \: for \: the \: ascent \: of \: sap \: :- \: }$

1. $\sf\green{ Cohesion \: :- \: }$ Mutual attraction between water molecules.
2. $\sf\pink{ Adhesion \: :- \: }$ Attraction of water molecules to the surface of tracheal elements.
3. $\sf\blue{ Transpiration \: pull \: :- \: }$ Driving force for upward movement of water.