Intermediate Filaments Flashcards
Where are intermediate filaments found?
Found throughout the cytoplasm of many types of cells extending from around the nucleus to the plasma membrane.
In what types of cells are intermediate filaments especially abundant?
They are abundant in cells experiencing mechanical stress such as skin cells, muscle cells, nerve cells.
What is the diameter of intermediate filaments?
About 10 nm thicker than actin filaments but thinner than microtubules.
What proteins make up intermediate filaments?
Made of different proteins depending on the cell type (ex: keratin in skill cells)
What is the structure of intermediate filaments?
They are rope-like fibers that are durable and resistant to stretching.
What is the primary function of intermediate filaments?
They provide mechanical strength protecting the cell against stretching or deformation.
How do intermediate filaments help maintain cell stability?
They maintain the shape and stability of cells, especially in tissues subject to mechanical wear and tear
What role do intermediate filaments play with organelles?
They anchor organelles in fixed positions specifically the nucleus
How do intermediate filaments contribute to tissue integrity?
They form strong bonds between cells giving tissues toughness and structural integrity.
