Membrane extension during cell locomotion is driven by:
A)myosin II.
B)actin depolymerization.
C)contraction.
D)actin polymerization.

Question

Quizplus · Accepted Answer

Membrane extension during cell locomotion is driven by actin polymerization. Actin monomers polymerize to form actin filaments at the leading edge of the cell, pushing the membrane forward and creating a protrusion. This process is regulated by a complex network of proteins and signaling pathways. While myosin II and contraction play a role in creating tension and retracting the rear of the cell, they are not the primary drivers of membrane extension during cell locomotion. Actin depolymerization can contribute to cell motility, but it is not the main mechanism for membrane extension.

Membrane Extension During Cell Locomotion Is Driven By