NTA Abhyas NEET2020BotanyRespiration in PlantsPractice
In the electron transport chain the correct sequence of electron acceptor is
Options
- ACytochrome a , a 3 , b , c
- BCytochrome b , c , a , a 3
- CCytochrome b , c 3 , a , a 3
- DCytochrome c , b , a , a 3
Correct answer
B. Cytochrome b , c , a , a 3
Step-by-step solution
ETS consists of 5 complex : Complex I - NADH is oxidised by transferring electrons to Ubiquinone in presence of NADH dehydrogenase. Complex II - FADH2 is oxidised by transferring electrons to Ubiquinone. Complex III - Reduced ubiquinone (ubiquinol) is oxidised by transferring electrons to cytochrome c via cytochrome bc1 complex. Cytochrome c is a small protein attached to the outer surface of the inner membrane and acts as a mobile carrier for the transfer of electrons from Complex III to Complex IV. Complex IV - I