FIGURE 2.

Relationship between the individual maximal oxidative activities and the ATP synthesis rate or coupling efficiency. The correlation of mitochondrial FCCP-induced maximal ETS activity using succinate as the respiratory substrate with (A) the maximal rate of ATP synthesis (mean values are reported in Table 1) or (B) the coupling efficiency (ATP/O ratio) calculated at the highest common ATP synthesis rate (mean values are shown in Figure 1B). Individual values show five independent mitochondrial preparations from the liver of toad measured at 20°C (white circles), at 25°C (gray circles), and at 30°C (black circles).