Answer to Question #81804 in Cell Biology for Lauren

Question

The ________ the phospholipid bilayer prevent hydrophilic substances from passing straight through the plasma membrane.
a. hydrophobic heads surrounding
b. hydrophobic tails in the center of
c. physical size limitations of

Answer 1

Answer

b. hydrophobic tails in the center of

Hydrophobic tails of phospholipids localized in two layers of the bilipid membrane interact in the center of the membrane and prevent the water-soluble (hydrophilic) substances from passing through the membrane.