AP BIOLOGY

Detailed explanation-1: -Capillary action is important for moving water (and all of the things that are dissolved in it) around. It is defined as the movement of water within the spaces of a porous material due to the forces of adhesion, cohesion, and surface tension.

Detailed explanation-2: -What is Capillary Action? We can define capillary action as a phenomenon where ascension of liquids through a tube or cylinder takes place. This primarily occurs due to adhesive and cohesive forces. The liquid is drawn upward due to this interaction between the phenomena.

Detailed explanation-3: -Capillary water is retained in the soil by capillary action (force) which is less than the atmospheric pressure. Thus, capillary water is retained in soil as the properties of surface tension (adhesion and cohesion) of the soil micropores are more strong than the gravitational attraction or gravitational force.

Detailed explanation-4: -Capillary is a phenomenon of rising or falling of liquid surface in a small tube compared to the adjacent normal liquid level. The rise of liquid in tube known as capillary rise while depression of fluid level is known as capillary fall.

Detailed explanation-5: -Both adhesion and cohesion allow water to move in one continuous column from a plant’s roots to its leaves. This upward movement called capillary action as seen in the test tubes in the picture is the result of both adhesion to the sides of the glass and cohesion of the water molecules to each other.