The name Caroline is an American baby name. In American the meaning of the name Caroline is: Manly. French Meaning: The name Caroline is a French baby name. In French the meaning of the name Caroline is: Song of happiness.
Figure 1 summarizes the permeability properties of pure lipid bilayers. Lipid-soluble molecules can readily pass through a lipid bilayer. Examples include gas molecules such as oxygen (O 2) and carbon dioxide (CO 2), steroid molecules, and fat-soluble vitamins (A, D, E, and K). Surprisingly, some small polar molecules are capable of permeating the lipid bilayer without the aid of a membrane transport protein.
It's called osmosis.   A selectively permeable membrane will only allow certain molecules  to pass trough. To illustrate: If you have a high concentration of  sugar mole â¦ cules on one side of the membrane, no sugar on the other  side, and the sugar molecules are too big to pass trough the  membrane. If this is the case, then water molecules will diffuse  over to the side of the membrane with a high sugar concentration.  This happens because the molecules try to distribute themselves  evenly in the solution. The water molecules move because the sugar  molecules can't. 3 people found this useful.