Indicate which of the following statements is NOT true regarding the cell cytoskeleton. A) The three major building blocks of cytoskeletal filaments can bind to and hydrolyze nucleotides. B) The building blocks of microfilaments and microtubules are globular proteins, whereas those of intermediate filaments are themselves filamentous proteins. C) Intermediate filaments are typically thicker than actin filaments but thinner than microtubules. D) Centrosome is the primary microtubule nucleation site in most cells.
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This statement is true. The three major components of the cytoskeleton are microfilaments (actin), microtubules (tubulin), and intermediate filaments (various proteins). All of these components can bind to and hydrolyze nucleotides. B) The building blocks of Show more…
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Which of the following statements about the cytoskeleton is false? a. The cytoskeleton helps to support cells. b. Once laid down, the elements of the cytoskeleton are fixed and remain permanently in place. c. The cytoskeleton is composed of three types of fibers: microfilaments, microtubules, and intermediate filaments. d. The cytoskeleton plays an important role in amoeboid motion.
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