Question

Predict the direction of net movement of water molecules in the picture below:

• A. A to B
• B. B to A
• C. A to B and B to A
• D. No movement of water molecules

Answer 1

The correct option is A

A to B

The process depicted in the picture is osmosis.
Water will move from A (lower concentration of solute) to B (higher concentration of solute).
In turn, this movement will eliminate the difference of solute concentration in A and B which are separated by a semi-permeable membrane.