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How are microfilaments and microtubules different? | HIX Tutor

Microfilaments are polymers of actin <a href="https://socratic.org/biology/molecular-biology-basics/proteins">proteins</a>, and their primary function is to provide structure. 
Microtubules are polymers of tubulin proteins, and their primary function is to provide motion: which may include cellular movement, cell division, or ciliary movement of extracellular matter (e.g. mucus).

Microfilaments are polymers of actin proteins, and their primary function is to provide structure. 
Microtubules are polymers of tubulin proteins, and their primary function is to provide motion: which may include cellular movement, cell division, or ciliary movement of extracellular matter (e.g. mucus).

Luna Cruz

Microfilaments are composed of actin and are involved in cell structure and movement, while microtubules are made of tubulin and play a role in cell shape, transport, and chromosome separation during cell division.