Which of the following choices correctly describes the composition of the cell membrane?
A.
contains only lipids
B.
contains lipids and protein
C.
contains lipids and cytosol
D.
contains only proteins
Correct Answer: Option B
Explanation
It consists of a lipid bi-layer with embedded proteins. The basic function of the cell membrane is to protect the cell from its surroundings.
The cell membrane controls the movement of substances in and out of cells and organelles. In this way, it is selectively permeable to ions and organic molecules
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