In the Electron Transport System (ETS), complex II (Succinate dehydrogenase) transfers electrons from FADH₂ to ubiquinone. Which of the following statements about Complex II is true?
- AIt pumps protons across the inner mitochondrial membrane.
- BIt is a peripheral membrane protein.
- CIt participates in both the Krebs cycle and the ETS.
- DIt directly accepts electrons from NADH.
✓ Correct answer: C
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