[Campbell Biology P.166] A researcher observes that a type of animal cell frequently loses i... | Practice Question

A researcher observes that a type of animal cell frequently loses its characteristic shape and that its nucleus is often displaced from its central position. Based on the functions described in the text, which cytoskeletal component is most likely to be dysfunctional in these cells?

  • A: Microfilaments.
  • B: Microtubules.
  • C: Intermediate filaments.
  • D: Myosin motors.

Explanation

The text explicitly states: 'Intermediate filaments are especially sturdy and play an important role in reinforcing the shape of a cell and fixing the position of certain organelles. For instance, the nucleus typically sits within a cage made of intermediate filaments.' Therefore, dysfunction in intermediate filaments would likely lead to the observed loss of shape and displaced nucleus.