Question

What is the effect of osmolarity on water movement between compartments?

Answer 1

There will be net movement of water to the compartment where the solute concentration is highest...........

Explanation:

Across the membrane separating the compartments, there will be movement of water IN BOTH DIRECTIONS. The rate of movement will be GREATER TOWARDS the side that expresses a solute concentration. That is the less concentrated solution exerts an osmotic pressure.

Of course the membrane separating the solutions are permeable to water but not to salt particles, hence a `"semi-permeable membrane"`.