An environmental toxin is discovered that interferes with certain cellular functions. When affected cells are examined, it is observed that
proteins that are normally found on the plasma membrane are instead found in
the cytoplasm. Other proteins are also located improperly. Which structure is
most likely affected by the toxin?
A
lysosome
B mitochondria
С
cell wall
I
D
Golgi apparatus

Golgi apparatus

Explanation:

The Golgi apparatus is an organelle found in most eukaryotic cells, i.e. cells with a clearly defined nucleus. The purpose of the Golgi apparatus is to transport, modify, and package proteins and lipids. If a cell affected by an environmental toxin ended up with misplaced proteins, we could conclude that the organelle that is no longer functioning properly is the Golgi apparatus.