Due to electron leaking, the P/O ratio of electrons entering through Complex II

Question

Due to electron leaking, the P/O ratio of electrons entering through Complex II in vivo is about A. 8/3 B. 10/3 C. 1.5 D. 2.5 E. O se os dois shama Town Which of the following is false concerning the regulation of the pyruvate dehydrogenase complex? A, PDC is upregulated by pyruvate. B. PDC is downregulated by NADH C. PDC is upregulated by acetyl CoA. D. PDC is downregulated by ATP. The reaction below requires which cofactor(s)? OH A. NADH B. biotin C. TPP D. more than one of the above E. None of the above

Explanation / Answer

Ans 5 : c) 1.5

P/O ratio refers to the Phosphate/ Oxygen ratio , which is calculated using the number of ATP produced from the electron transport chain through the movement of electrons which are donated by the reduction of oxygen atom.

Since 3 ATP molecules are produced per 2 oxygen atoms , so the P/O ratio comes out to be 1.5

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