LIFE SCIENCE

Detailed explanation-1: -All of the lipid molecules in cell membranes are amphipathic (or amphiphilic)-that is, they have a hydrophilic (“water-loving”) or polar end and a hydrophobic (“water-fearing”) or nonpolar end. The most abundant membrane lipids are the phospholipids. These have a polar head group and two hydrophobic hydrocarbon tails.

Detailed explanation-2: -Hydrophilic membranes are attracted to water, while hydrophobic membranes repel it. This difference in wettability is key in determining how each membrane is used. Hydrophilic membranes are often used in water filtration, while hydrophobic membranes are more common in oil and gas applications.

Detailed explanation-3: -The heads, which form the outer and inner linings, are “hydrophilic” (water loving) while the tails that face the interior of the cell membrane are “hydrophobic” (water fearing).