Question

Based on the figure given below which of the following statements is NOT correct?

• A. Movement of solvent molecules will take place from chamber A to B.
• B. Movement of solute also will take place from A to B.
• C. Presence of a semipermeable membrane is a prerequisite for this process to occur.
• D. The direction and rate of osmosis depends on both pressure and concentration gradients.

Answer 1

The correct option is B

Movement of solute also will take place from A to B.

Solute cannot move across a semi-permeable membrane unless facilitated through channels or special carrier proteins. Therefore only B is incorrect.
All the other statements are true for osmosis- solvent molecules, i.e., water, moves from the region of higher water potential to the region of lower water potential. Osmotic movement is also dependent on pressure and concentration gradients.