MDCAT Biology MCQ #1687

While observing Elodea leaves under a microscope, a student notices the circular streaming of cytoplasm (cyclosis). This movement is primarily facilitated by which cytoskeletal element?

MDCAT Biology MCQ #1687

  1. Question 1

    Q1. While observing Elodea leaves under a microscope, a student notices the circular streaming of cytoplasm (cyclosis). This movement is primarily facilitated by which cytoskeletal element?

    • A) Microfilaments
    • B) Microtubules
    • C) Intermediate filaments
    • D) Golgi vesicles

    Answer: Microfilaments

    Explanation: Cyclosis is driven by microfilaments (actin). Microtubules are tempting as they also assist transport, but microfilaments specifically drive cytoplasmic streaming.