Q.

Regarding cell membrane, which of the following is FALSE?

A. the diameter of the cell membrane is about 7.5nm
B. 50% of the cell membrane is made up of proteins
C. the main lipids of the cell membrane are phospholipids
D. the hydrophilic ends of the lipid molecules are faced towards the interior of the cell membrane
E. the proteins in the cell membrane function as carriers, ion channels, enzymes and receptors
Answer» D. the hydrophilic ends of the lipid molecules are faced towards the interior of the cell membrane
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