Osmosis can be defined as the movement of 

A.

Molecules from solution of higher concentration to low concentration

B.

Molecules from solution of low concentration to high concentration

C.

Water from solution of high concentration to low concentration

D.

Water across a semi-permeable membrane from solution of low concentration to high concentration

E.

Water across a semi-permeable membrane from solution of high concentration to low concentration

Correct answer is D

Osmosis is a special case of diffusion in which only water molecules move from a region of higher to lower water potential through a semi-permeable membrane.