Studies of the Endomembrane System Often Involve the Use of a Protein

Multiple Choice

Studies of the endomembrane system often involve the use of a protein that can emit a green fluorescence (glow) . A researcher wants to make a video of cell behavior, so she initially labels the outer nuclear envelope of a cell with the fluorescent tag and records a video for several hours. Later, she sees that the tag is part of a transport vesicle very close to the plasma membrane.
-The fluorescent tag likely did not become incorporated into which of the following organelles?

A) "receiving" side of Golgi
B) "shipping" side of Golgi
C) mitochondria
D) rough ER