HORTICULTURE

Detailed explanation-1: -In the xylem vessels, water molecules are strongly attracted to each other and exhibit a “stickiness” called cohesion that is due to the formation of hydrogen bonds between different water molecules. The “stickiness” between water molecules and the xylem vessel walls is called adhesion.

Detailed explanation-2: -Adhesion, which is molecular attraction between “unlike” molecules. In the case of xylem, adhesion occurs between water molecules and the molecules of the xylem cell walls. Cohesion, which is molecular attraction between “like” molecules. In water, cohesion occurs due to hydrogen bonding between water molecules.

Detailed explanation-3: -adhesion: the cell walls of xylem vessels are charged, attracting water molecules. the adhesive attraction of water to xylem vessel walls moves them up the stem against gravity. adhesion is important when sap starts to rise in plants that were leafless through the winter.

Detailed explanation-4: -Water likes to stick to itself, but under certain circumstances, it actually prefers to stick to other types of molecules. Adhesion is the attraction of molecules of one kind for molecules of a different kind, and it can be quite strong for water, especially with other molecules bearing positive or negative charges.