Cilia are distinct from microvilli because microvilli are composed of which cytoskeletal element?
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Correct answer: Actin filaments
While cilia are microtubule-based organelles, microvilli are finger-like projections containing a core of bundled actin filaments. Microvilli are primarily involved in increasing surface area for absorption, not movement.
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More Cilia questions
- Nodal cilia, found in the embryonic 'node', are unique because they:
- What is the characteristic microtubule arrangement in the axoneme of a motile cilium?
- Which of the following proteins serves as the molecular motor that generates the sliding force between microtubule doublets in cilia?
- The basal body, which anchors the cilium to the apical cytoplasm, has a microtubule arrangement similar to which other organelle?
- Which of the following describes the 'effective stroke' of a motile cilium?
- Primary cilia (non-motile cilia) differ from motile cilia in that they typically: