Explanation:
The monomeric actin is called G - actin.
\(\mathrm{G}\) - actin (globular actin) refers to the individual subunits of actin protein that exist in a monomeric form. G-actin is the building block for the formation of filamentous actin (F- actin) which is the polymerized form of actin that makes up the microfilaments in cells. When G-actin molecules polymerize, they from long, helical chain, resulting in the formation of \(\mathrm{F}\)-actin filaments these filaments play a critical role in various cellular processes, including cell motility, contraction, and cytoskeletal organization.