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laila [671]
3 years ago
12

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
2 answers:
maksim [4K]3 years ago
8 0

C. lipid bilayer  :) hope this helps!

hichkok12 [17]3 years ago
7 0
The correct answer is C. lipid bilayer.

The lipid bilayer is a structural barrier that is the actually boundary of the cell. It is made of two layers of fat separated into 2 separate sheets.
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