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Multiple Choice
Which of the following biological activities best demonstrates water's adhesive properties?
A
Water maintaining a stable temperature in a pond
B
Water moving up through the xylem in plants
C
Water forming droplets on a waxy leaf surface
D
Water molecules sticking together to form a bead
Verified step by step guidance
1
Understand the concept of adhesion: Adhesion refers to the ability of water molecules to stick to other types of molecules or surfaces. This is due to the polar nature of water molecules, which allows them to form hydrogen bonds with other substances.
Identify examples of adhesion: In biological contexts, adhesion can be observed when water molecules stick to surfaces like plant tissues, soil particles, or even glass.
Analyze the options given: Consider each option and determine which one involves water sticking to a different substance, rather than sticking to itself (which would be cohesion).
Evaluate the option 'Water moving up through the xylem in plants': This process involves water molecules adhering to the walls of the xylem vessels, allowing them to move upward against gravity. This is a classic example of adhesion.
Conclude with the correct demonstration of adhesion: Based on the analysis, the movement of water through the xylem in plants best demonstrates water's adhesive properties, as it involves water sticking to the plant tissue.