Fig. 5. Temperature dependence of _max [expressed as units per mg of total protein (A) and units per g wet mass (B)] for pyruvate reduction by lactate dehydrogenase (LDH) in crude homogenates prepared from white muscle (circles) and liver (triangles) of cod (Gadus morhua) acclimated to different temperatures. Values are means ± S.E.M. (N=21 for 4°C and N=15 for 12°C). ns, not significant. The dotted line indicates the upper border of data accepted for regression analysis.