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 A. Which of these structures, if present in a prokaryote, would prevent the organism from using this type of actin polymerization to chemotax toward a signal?
If a prokaryote has a cell wall structure that completely surrounds the cell membrane, it would prevent actin polymerization at the cell membrane and inhibit the formation of filamentous actin. This would prevent the prokaryote from using this type of actin polymerization to chemotax toward a signal.
