Microbiology question regarding osmosis

In the three types of passive transport (diffusion, facilitated diffusion, and osmosis), the electrochemical gradient provides the source of energy rather than using the cell’s ATP. Diffusion is the movement of small or lipid soluble molecules down the concentration gradient through the spaces in the cell membrane. Facilitated diffusion occurs when permeases provide a pathway for diffusion of large or electrically charged molecules. Osmosis is specifically the diffusion of water through the membrane.


If no solutes, water will enter the bacteria.

If high solutes, water will move out of the bacteria.