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Solution


Q.

In the electron transport system present in the inner mitochondrial membrane, complexes I and IV are respectively
 a) NADH Dehydrogenase and FADH_2
 b) NADH_2 and NADH Dehydrogenase
 c) NADH Dehydrogenase and cytochrome-c oxidase complex
 d) NADH dehydrogenase and ATP synthase
1 A
2 B
3 C
4 D

Ans.

(c) Complex I of electron transport system (ETS) is NADH dehydrogenase, which oxidase NADH produced in the mitochondrial matrix during citric acid cycle. Complex IV of cytochrome-and a3 and two copper centres.