What Kind of Membrane Protein Penetrates into the Hydrophobic Part

Question

What kind of membrane protein penetrates into the hydrophobic part of the lipid bilayer?
A)integral protein
B)lipid-anchored protein
C)peripheral protein
D)phosphatidylcholine
E)galactocerebroside

Accepted Answer

Integral proteins are able to penetrate into the hydrophobic part of the lipid bilayer due to their hydrophobic amino acid sequences. This allows them to be firmly embedded within the membrane and function as channels, receptors, or transporters. Lipid-anchored proteins are attached to the membrane through a covalent bond with a lipid molecule but do not necessarily penetrate into the membrane. Peripheral proteins are located on the surface of the membrane and do not penetrate into the bilayer. Phosphatidylcholine and galactocerebroside are both types of lipid molecules that make up the lipid bilayer, but they do not function as membrane proteins.