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Cytoskeleton Knowledge-Based Practice

Biology · Cell Structure & Function · Biology · Organelles

5 Biology practice questions on Cytoskeleton. Questions that assess core concepts and understanding.

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Questions

  1. 1.

    Which component of the eukaryotic cytoskeleton forms the characteristic "9 + 2" axoneme arrangement found in motile cilia and flagella?

    • A) Microtubules
    • B) Microfilaments
    • C) Intermediate filaments
    • D) Myosin filaments
  2. 2.

    Which component of the eukaryotic cytoskeleton forms the internal structural core that supports microvilli in intestinal epithelial cells?

    • A) Intermediate filaments
    • B) Microtubules
    • C) Microfilaments
    • D) Collagen fibers
  3. 3.

    Which cytoskeletal element consists of fibrous protein subunits such as keratin, specializes in bearing mechanical tension, and plays a vital role in anchoring the nucleus and forming the nuclear lamina?

    • A) Microfilaments
    • B) Intermediate filaments
    • C) Microtubules
    • D) Centrioles
  4. 4.

    Which component of the eukaryotic cytoskeleton consists of two intertwined strands of actin subunits and forms the contractile ring responsible for pinching animal cells apart during cytokinesis?

    • A) Intermediate filaments
    • B) Microfilaments
    • C) Microtubules
    • D) Collagen fibers
  5. 5.

    Which component of the eukaryotic cytoskeleton is composed of hollow cylinders of tubulin dimers and forms the mitotic spindle responsible for separating chromosomes during cell division?

    • A) Microfilaments
    • B) Intermediate filaments
    • C) Myosin filaments
    • D) Microtubules

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