Which of the following is characterized by fibers present in the extracellular matrix?

Explanation

The fluid mosaic model describes the structure of the cell membrane, which includes a dynamic arrangement of lipids and proteins but does not contain extracellular matrix fibers. In contrast, the plant and bacterial cell walls are rigid structures, and the bacterial plasma membrane lacks extracellular fibers. Therefore, the presence of extracellular matrix fibers is not a feature of the fluid mosaic model.