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2. Which of the following statements about the citric acid cycle is INCORRECT? A. It is a cyclic series of eight reactions. B. At least one of the reactions is an isomerization reaction C. No reduced cofactor is generated in the citric acid cycle. D. In each tum, there is an addition of two carbon atoms as acetyl-CoA and elimination of two carbon atoms as carbon dioxide. 3. The following statements concerning the electron transport chain are correct EXCEPT A. The amount of ATP generated is proportional to the proton motive force. B. The components of the electron transport chain are in the intermembrane space in the mitochondria. C A series of protein complexes are involved in the electron transfer process. D. O, is the final electron acceptor in the electron transport chain. 4. The reaction rate of the citric acid cycle is dependent on the concentration of (i) [ADP] / [AT] (ii) (ADP) (iii) [ATP] A. (1) only. B. (i) and (iii) C (ii) and (iii). D. All of the above