Biology

The correct answer is: C.Makes up the majority of the membrane

This is NOT a function of proteins in the cell membrane. Instead, lipids (especially phospholipids) make up the majority of the membrane by mass. The lipid bilayer serves as the structural foundation of the membrane, while proteins are embedded within the lipid bilayer and serve specific functional roles.

Here's a breakdown of the other options:

A.Transport ions and other large molecules through the bilayer: This is a key function of membrane proteins. Transport proteins, such as channel proteins and carrier proteins, help ions and larger molecules cross the hydrophobic lipid bilayer.

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