AP BIOLOGY

BIOCHEMISTRY

PROPERTIES OF WATER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Capillary action, which allows for the movement of water within plants, is the result of these two properties of water
A
Cohesion
B
Specific heat capacity
C
Adhesion
D
Pragmatic attraction
Explanation: 

Detailed explanation-1: -Capillary action occurs because water is sticky, thanks to the forces of cohesion (water molecules like to stay close together) and adhesion (water molecules are attracted and stick to other substances).

Detailed explanation-2: -Because water molecules like to stick together (cohesion) and like to stick to the walls of the tubes of cellulose (adhesion), they rise up the tubes all the way from the roots to the leaves. Water then evaporates from the leaves, helping to draw up more water from the roots. This process is called capillary action.

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: -Since water is attracted to other molecules, adhesive forces pull the water toward other molecules. Water is transported in plants through both cohesive and adhesive forces; these forces pull water and the dissolved minerals from the roots to the leaves and other parts of the plant.

Detailed explanation-5: -Hydrogen bonds cause water to be exceptionally attracted to each other. Therefore, water is very cohesive.

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