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Fig. 7. O2 consumption of G. dibranchiata erythrocytes under
control conditions or exposed to the mitochondrial COX inhibitors sodium azide
(1 mmol l-1) and sodium cyanide (1 mmol l-1). Values are
means ± S.D. (N=5 for CN, N=3
for azide). O2 consumption is presented relative to the average at
control conditions (i.e. consumption rate immediately prior to addition of
inhibitor). Asterisks represent a significant decrease in consumption rate to
the control value (no toxin) by one-tailed, paired t-test
(**P<0.01, ***P<0.005).