SELECTED PAPERS 

 TABLE VI 



Tricarboxylic acid cycle 



H 2 C— COOH. 



HO— C— COOH 



H 2 C — COOH 



J—H 2 



\ 



\+H 2 



coupled with an uptake of inorganic phosphate leading to an ample 

 formation of ATP; according to Ochoa, not less than 32 molecules of 

 ATP are formed in the combustion of one molecule of glucose. 



All the hydrogen removed in the dehydrogenations passes a long 

 chain of respiratory catalysts at the end of which oxygen evidently 

 must act as the final acceptor. This last conclusion is of special im- 



454 



