Figure 2.

Effects of nupercaine and RR on the distribution of 137Cs+ between isolated succinate-energized lamprey liver mitochondria and an incubation medium in the presence of valinomycin. 0.01 μM of valinomycin was added from the beginning of the experiment. [Nup], [RR], and [CN], if added, were 50 μM, 7 μM, or 1 mM, respectively. All other details are in Figure 1.