Figure 5. Ca²⁺ is involved in mediating chemokinesis. Absence of extracellular Ca²⁺ and chelation of intracellular Ca²⁺ significantly decreased ATP-triggered chemokinesis. (A) Normalized average distance and statistical analysis, each symbol represents an individual cell; (B) normalized summative distance; (C) slope of normalized summative distance where each symbol represents the average of all cells in a given CP.