Question

The phenomenon of osmosis is involved in the diffusion of water from

• A. One cell to another
• B. Soil to root
• C. Xylem vessel to xylem vessel
• D. None of the above

Answer 1

Answer: (C)

Xylem vessel to xylem vessel

Osmosis is the process of flow of fluid from higher to lower concentration through the semi-permeable membrane. The wall of xylem vessels behaves as the semi-permeable membrane so diffusion of water from one xylem vessel to another xylem vessel can be called the phenomenon of osmosis.

In all other three cases, there is no presence of semi-permeable membrane so, it is the simple diffusion process.

So, the correct answer is the 'xylem vessel to xylem vessel'.