Proteins attached to the outer half of the plasma membrane bilayer are usually attached by a
A) farnesyl tail.
B) prenyl tail.
C) geranyl tail.
D) glycosylphosphatidylinositol (GPI) anchor.

Question

Quizplus · Accepted Answer

Proteins attached to the outer half of the plasma membrane bilayer are usually attached by a glycosylphosphatidylinositol (GPI) anchor. This anchor attaches to the C-terminus of the protein and anchors it to the outer half of the plasma membrane bilayer. Farnesyl tails and prenyl tails are not typically used to attach proteins to the plasma membrane, and while geranyl tails can be used for membrane attachment, they are not typically used for proteins on the outer half of the bilayer.

Proteins Attached to the Outer Half of the Plasma Membrane