NEETBotanyRespiration in Plants
Components of the Electron Transport Chain Characteristics A. NADH Dehydrogenase (Complex I) 1. Transfers electrons from ubiquinone to cytochrome c. B. Ubiquinone 2. Receives electrons from NADH and FADH2, becoming reduced to ubiquinol. C. Cytochrome c 3. Transfers electrons from complex III to complex IV. D. ATP Synthase (Complex V) 4. Couples the transfer of electrons to the production of ATP from ADP and inorganic
Options
- AA - 4, B - 2, C - 1, D - 3
- BA - 2, B - 1, C - 3, D - 4
- CA - 1, B - 2, C - 4, D - 3
- DA - 3, B - 4, C - 2, D - 1
Correct answer
B. A - 2, B - 1, C - 3, D - 4
Step-by-step solution
A - 2: NADH Dehydrogenase (Complex I) receives electrons from NADH and transfers them to ubiquinone. B - 1: Ubiquinone receives electrons from both NADH and FADH2 and is reduced to ubiquinol. It then transfers electrons to cytochrome c via complex III. C - 3: Cytochrome c transfers electrons from complex III to complex IV. D - 4: ATP Synthase (Complex V) couples the electron transport to ATP production by converting ADP and inorganic phosphate into ATP.