Chemotaxis is a process by which cells migrate toward higher concentrations of a signaling molecule. The signaling binds cell-surface receptors that result in actin polymerization at the cell membrane. Actin polymerization results in the formulation of filamentous actin that exerts a force and leads to protrusion of the leading edge. A researcher tested Compound A on chemotaxing cells and measured the relative amount of filamentous actin found in the cells at different times. Part B. In the model proposed, which of these events MOST likely occurs to facilitate chemotaxis?
In the model proposed, the event that MOST likely occurs to facilitate chemotaxis is the binding of the signaling molecule to the cell-surface receptors. This binding triggers actin polymerization at the cell membrane, leading to the formulation of filamentous actin and the protrusion of the leading edge.
