Final answer:
Hydrophilic refers to molecules attracted to water. In cell membranes, hydrophilic heads interact with water, creating a bilayer membrane.
Explanation:
Hydrophilic refers to molecules or regions of molecules that are attracted to water. In the context of phospholipids in cell membranes, the hydrophilic heads interact with water and other polar molecules on the cell's exterior and interior. This helps create a bilayer cell membrane where the hydrophilic heads face the watery inside and outside of the cell while the hydrophobic tails remain within the membrane.
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