Key points are not available for this paper at this time.
By using an NADH‐regenerating system, different steady states were obtained in which the electron flux through each respiratory unit was modulated. Under these conditions it was observed that, at constant Δ H + , the ATP/O value decreased with increasing electron flux. This flux‐yield dependence can be regarded as evidence in support of indirect coupling at the proton pump level.
Ouhabi et al. (Mon,) studied this question.