Typical trajectories of the center of mass of a chemotactic cell with a perfectly absorbing object of unit radius placed in its path. All parameters with the exception of C0 are set to unity. The value of C0 is equal to 10. The equation describing these paths is given by Eq. (11). Initially the cells are placed at z = -5 with d = 0.001, 0.5 – 4.5 in 0.5 step intervals. In this diagram we do not consider any mechanical interaction between the cell and the sphere.