Question

which macromolecule forms a double layer as the primary structure of cell membranes? fats oils phospholipids steroids

Explanation:

Phospholipids have a hydrophilic head and hydrophobic tails. In an aqueous environment, they arrange themselves in a double - layer to form the cell membrane structure. Fats, oils, and steroids do not form the primary double - layer structure of cell membranes.

Answer:

phospholipids