AP BIOLOGY

Detailed explanation-1: -One is cohesion, where water molecules are attracted to one another through hydrogen bonds. The other is adhesion, where water molecules are attracted to the xylem walls through hydrogen bonds. These properties of water are important for the movement of water but are not enough to move water up a tree.

Detailed explanation-2: -Adhesion: Adhesion is the force of attraction between two particles of different substances (e.g. water molecule and xylem wall)

Detailed explanation-3: -Adhesion makes a water drop a drop. Water is highly cohesive-it is the highest of the non-metallic liquids. Water is sticky and clumps together into drops because of its cohesive properties, but chemistry and electricity are involved at a more detailed level to make this possible.

Detailed explanation-4: -The “stickiness” between water molecules and the xylem vessel walls is called adhesion. Cohesion and adhesion work together in the xylem to pull water molecules from the roots, up the stem, and out of the plant through the stomata. The flow of water transport is impacted by the plant rate of transpiration.

Detailed explanation-5: -Adhesion refers to the tendency of water molecules to be attracted, or ‘’stick”, to other substances. This is a result of the covalent bond between the two hydrogen atoms and the one oxygen atom in the water molecule.