Question

What happens during endosmosis ? Choose the correct answer from the following

• A. Water molecules diffuse from lower water potential to higher water potential
• B. Water molecules diffuse from higher water potential to lower water potential
• C. Water molecules move from a solution towards pure water
• D. Water molecules move from cell towards its exterior

Answer 1

Answer: (B)

Water molecules diffuse from higher water potential to lower water potential

Answer 2

Endosmosis is the net movement of water molecules from a region of higher to lower concentration through a differentially permeable membrane. It is essentially a type of diffusion but through a partially permeable membrane. In terms of water potential water moves from area of high i.e., less negative to area of low i.e. more negative water potential.