Figure 6. Effect of constitutive obstacles.

The sketch shows the experimentally accessible determination of $C_P^{\prime }$, where black circles indicate exemplary data points. The linear extrapolation used to determine the percolation threshold is shown as a gray line. C_const corresponds to the concentration of additional constitutive obstacles present in a live cell experiment. C and C' denote the real obstacle concentration (as used in simulations) and the experimentally determined obstacle concentration, respectively.