Which portion of the cell membrane is responsible for preventing unwanted materials from entering the cell? A. integral protein B. glycoprotein C. lipid bilayer D. cholesterol
Biology · High School · Tue Nov 03 2020
Answered on
Answer c is correct
The lipid bilayer is a universal component of all cell membranes. Its role is critical because its structural components provide the barrier that marks the boundaries of a cell. The structure is called a "lipid bilayer" because it is composed of two layers of fat cells organized in two sheets.The lipid bilayer is a thin polar membrane made of two layers of lipid molecules. These membranes are flat sheets that form a continuous barrier around all cells