Question

The cell membrane exists as a phospholipid bilayer. What characteristics of the membrane allow for the bilayer to exist?

O The membrane has proteins that hold the two layers together.
O Phosphate heads are hydrophilic and the fatty acid tails are hydrophobic.
O Phosphate heads are hydrophobic and the fatty acid tails are hydrophilic.
O The membrane is semipermeable.

Answer 1

Phosphate heads are hydrophilic and the fatty acid tails are hydrophobic