Which of the following is the best definition of osmosis?

Options

A. Movement of molecules from an area of their higher concentration to an area of their lower concentration
B. Movement of water across a semi-permeable membrane from an area of high water concentration to an area of lower water concentration
C. Movement of molecules from an area of their lower concentration to an area of their higher concentration
D. Movement of water across a semi-permeable membrane from an area of low water concentration to an area of higher water concentration

Answer

B

Explanation

Movement of water across a semi-permeable membrane from an area of high water concentration to an area of lower water concentration