Which statement about actin is correct?
A)Actin is expressed only in muscle.
B)Actin is expressed at low levels in most cells.
C)No known function has been described for actin in nonmuscle cells.
D)Nonmuscle cells only contain G actin.
E)Actin is the most abundant cytoplasmic protein in many cell types.

Question

Quizplus · Accepted Answer

Actin is a highly conserved protein that is expressed in all eukaryotic cells, not just muscle cells. In fact, actin is the most abundant cytoplasmic protein in many cell types. It plays a crucial role in a variety of cellular processes, including cell motility, cell division, and intracellular transport. While G actin is the monomeric form of actin, cells also contain F actin, which is the polymerized form and the primary component of the cytoskeleton.

Which Statement About Actin Is Correct