The Cellular Structure That is Composed Mostly of a Lipid

Question

The cellular structure that is composed mostly of a lipid bilayer with imbedded proteins is the
A)nucleus.
B)plasma membrane.
C)cytoplasm.
D)nucleolus.

Accepted Answer

The plasma membrane, also known as the cell membrane, is a thin lipid bilayer that encloses and protects the contents of the cell. The membrane is composed mainly of phospholipids and proteins that are embedded within the lipid bilayer, serving as channels and transporters to regulate the movement of substances in and out of the cell. The nucleus, nucleolus, and cytoplasm are all cellular structures, but they are not primarily composed of a lipid bilayer with embedded proteins.