The plasma membrane of a cell is composed of
A) phospholipid molecules
B) cholesterol molecules
C) protein molecules
D) all of the above

Question

Quizplus · Accepted Answer

The plasma membrane of a cell is composed of phospholipid molecules, cholesterol molecules, and protein molecules. The phospholipid molecules form a bilayer and make up the majority of the membrane. Cholesterol molecules are found within the phospholipid bilayer and help stabilize the membrane. Protein molecules are embedded within the phospholipid bilayer and have various functions, such as transport and cell signaling. Therefore, all of the above options are correct.

The Plasma Membrane of a Cell Is Composed of