Transmembrane proteins that span the membrane are
A) peripheral membrane proteins.
B) covalently linked to membrane lipids.
C) integral membrane proteins.
D) active transporters.

Question

Quizplus · Accepted Answer

Integral membrane proteins are those that span the membrane from one side to the other. Peripheral membrane proteins only associate with the membrane on one side, and do not cross through it. Covalently linked membrane lipids are not proteins at all, and active transporters are a specific type of integral membrane protein that actively move substances across the membrane.

Transmembrane Proteins That Span the Membrane Are