The subunits of microtubules and actin filaments are globular proteins, whereas those of intermediate filaments are themselves filamentous. A True B False
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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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Which of the following statements is FALSE? A. Motor proteins interact with cargo and with filamentous tracks like microtubules and actin. B. Intermediate filaments are made of actin. C. Microtubules are cytoskeletal elements composed of alpha and beta tubulins. D. The nuclear lamina is made of intermediate filaments.
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Indicate true (T) and false (F) statements below regarding the cell cytoskeleton. Your answer should be a four-letter string composed of letters T and F only; e.g. TTFF. The three major building blocks of cytoskeletal filaments can bind to and hydrolyze nucleotides. The building blocks of microfilaments and microtubules are globular proteins, whereas those of intermediate filaments are themselves filamentous proteins. Intermediate filaments are typically thicker than actin filaments but thinner than microtubules. Plant cells lack microtubules.
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