Fig. 2. Oxygen consumption.

Oxygen consumption of liver (A) and brain mitochondria (B) are shown. Trace 1 represents respiration supported from RCC-II. Trace 2 is as trace 1 except Ca2+ was present in the medium. Trace 3 is as trace 2 except mitochondria were pre-treated with L-NMMA. Trace 4 represents respiration supported from RCC-I. Trace 5 is as trace 4, except Ca2+ was present in the medium. Trace 6 is as trace 5 except mitochondria were treated with L-NMMA. Arrows indicates addition of RCC-I or RCC-II substrates to the chamber.