Biology

The correct answer is C.DNA.

DNA is not a structural part of the cell membrane. The cell membrane is primarily made up of phospholipids, cholesterol, and proteins. These components work together to form the lipid bilayer structure and help regulate the movement of substances in and out of the cell.

A.Phospholipids form the basic structure of the membrane, with their hydrophobic tails facing inward and hydrophilic heads facing outward.

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