[Campbell Biology P.174] A cell exhibits rapid amoeboid movement and cytoplasmic streaming. ... | Practice Question

A cell exhibits rapid amoeboid movement and cytoplasmic streaming. Which of the following cytoskeletal components would be most directly responsible for these specific cellular activities?

  • A: Microtubules
  • B: Intermediate filaments
  • C: Microfilaments
  • D: Cilia and Flagella

Explanation

Microfilaments, also known as actin filaments, are crucial for cell shape changes, amoeboid movement, and cytoplasmic streaming. Their dynamic assembly and disassembly, along with interactions with motor proteins, enable these active cellular movements. Microtubules are involved in organelle transport and cell division, while intermediate filaments provide structural stability.