Question

17. The gatekeeping function of the cell membrane is performed by the — A. Protein channels...

17. The gatekeeping function of the cell membrane is performed by the —

A. Protein channels

B. Cholesterol

C. Phospholipid tails

D. Phospholipid heads

Science   Anatomy-And-Physiology   
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Answer #1

Cell membrane is made up of phospholipid bilayer contains hydrophilic phosphate heads and hydrophobic lipid tails. In between the phospholipid bilayer cholesterol is present.

Proteins that are embedded in the cell membrane or plasma membrane acts as gate keeper of the cell.

Protein machinaries functions as gate keeping substances in the cell membrane.

Answer is A. Protein channels.

Remaining there options are wrong because they are concerned with the function of the water transportation.

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