Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the:
A. rate of movement of insoluble molecules inside the cell.
B. concentration of enzymes on either side of the cell membrane.
C. rate of molecular motion on either side of the cell membrane.
D. concentration of water molecules inside and outside the cell.
Osmosis is the diffusion of water across a membrane and is a passive process. Therefore, movement occurs due to a concentration gradient set up on either side of the membrane. If there is more water inside the cell than outside, water tends to move out.