The portion of a transmembrane protein that is embedded in the hydrophobic interior of the bilayer is usually in the form of a(n):
A)beta pleated sheet.
B)alpha helix.
C)alpha helix and beta pleated sheet combined.
D)extended polypeptide without secondary structure.
E)folded polypeptide without secondary structure.

Question

Quizplus · Accepted Answer

The hydrophobic interior of the lipid bilayer is best traversed by an alpha helix, which allows the hydrophobic side chains of the amino acids to interact with the lipid tails, stabilizing the protein's position within the membrane.

The Portion of a Transmembrane Protein That Is Embedded in the Hydrophobic