82 E. C. Slater and W. C. Hulsmann 



However, one has to be careful in extending the use of the 

 word inhibitor too far, because I in equation (1) is necessary 

 for respiration. In fact, removal of I would lead to inhibition 

 of respiration. It is possible that inhibition of respiration by 

 antimycin is due to combination with I2 (Hiilsmann, 1958). 



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