[Campbell Biology P.162] According to Table 6.1, which of the following statements accuratel... | Practice Question
According to Table 6.1, which of the following statements accurately compares the three main types of cytoskeletal fibers?
A: Microfilaments are the thickest, composed of tubulin dimers, and primarily involved in chromosome movements.
B: Intermediate filaments have a diameter of 8-12 nm and are primarily responsible for nuclear anchorage and formation of nuclear lamina.
C: Microtubules are composed of actin subunits and are involved in muscle contraction and cytoplasmic streaming.
D: Microfilaments are hollow tubes, are 25 nm in diameter, and contribute to cell motility.
Explanation
Table 6.1 states that Intermediate Filaments have a diameter of 8-12 nm and their main functions include anchorage of nucleus and certain other organelles; formation of nuclear lamina.