Which of the Following Is Not Characteristic of the Cytoskeleton

Multiple Choice

Which of the following is not characteristic of the cytoskeleton?

A) the cytoskeleton supports the plasma membrane and is responsible for the particular shape, rigidity, and spatial geometry of each different cell type.
B) the cytoskeleton probably plays a role in regulating cell growth and division.
C) the cytoskeletal elements are all rigid, permanent structures.
D) the cytoskeleton is responsible for cell contraction and cell movements.
E) the cytoskeleton supports and organizes the ribosomes, mitochondria, and lysosomes.