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.
In general, any nonpolar substance has this ability to pass through the bilayer. However, with membrane transport proteins, active or passive transport allows all sort of molecules into cells, anything polar.ating Newest Oldest. Best Answer: Since the lipid bilayer of cells is nonpolar, only non-polar substances can pass directly through the bilayer without the need for any help by membrane transport proteins.