KCET · BIOLOGY · STD 11 - 12. Respiration in Plants
The following is a scheme showing the electron transport system. Identify the electron carrier molecules indicated as A and B. Choose the correct option,
- A A = coenzyme Q, B = cytochrome c
- B A = cytochrome c, B = coenzyme Q
- C A = Fe-Sprotein, B = FMN
- D A = FMN, B = Fe-S protein
Answer & Solution
Correct Answer
(A) A = coenzyme Q, B = cytochrome c
Step-by-step Solution
Detailed explanation
(A) A = coenzyme Q, B = cytochrome c,
Coenzyme Q/ubiquinone (A) transfers electrons from complexes I and II to complex III, while cytochrome c (B) transfers electrons from complex III to complex IV in the electron transport chain.
Coenzyme Q/ubiquinone (A) transfers electrons from complexes I and II to complex III, while cytochrome c (B) transfers electrons from complex III to complex IV in the electron transport chain.
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