Which protein subunit is the primary building block of microfilaments?
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Correct answer: Actin monomers
Microfilaments, also known as actin filaments, are composed of globular actin (G-actin) monomers that polymerize to form filamentous actin (F-actin). They are the thinnest components of the cytoskeleton.
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More Cytoskeleton and Its Filaments questions
- Microtubules exhibit a characteristic known as 'dynamic instability.' This process is primarily driven by the hydrolysis of which molecule?
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- Which of the following intermediate filaments is specifically found in the nucleus and provides structural support to the nuclear envelope?
- Which motor protein typically moves cargo toward the 'minus' end of microtubules, usually toward the centrosome?
- The '9+2' arrangement of microtubules is a structural hallmark of which cellular organelles?
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