All of the following proteins may be found in the extracellular matrix of animal cells EXCEPT ________.
A) collagen
B) fibronectin
C) actin
D) All of the listed proteins are found in the extracellular matrix of animal cells.

Question

Quizplus · Accepted Answer

Actin is not typically found in the extracellular matrix of animal cells, as it is a cytoskeletal protein that is primarily found within the cell. Collagen and fibronectin, on the other hand, are commonly found in the extracellular matrix, where they provide structural support and help to organize cell adhesion and signaling.

All of the Following Proteins May Be Found in the Extracellular