Actin waner false inown a mco mern are two stranded helical polymers of the protein actin. They appear as flexble structures. t ameter of 5-3 nm, that are organised into a van flaments are dispersed throughout the cell, per are.a. Although 二 st highly oncentrated in the corea jus beneath the plasma membrane. 25 mm m Microtubules are long and straight and typically h single mcrotutule-organdring canter (MTOC TLHMIC病 EPILAMENTS afe elaments ate topehke hens with a diameter of around siamen forms a meshwork estee ous family. One type of intermediae bert ore cef-cell 5 Figure 10-2. The three types of protein filaments that form the cytoskeleton.Figure 10-2. The three types of protein filaments that form the cytoskeleton