Which of the following complexes in the Electron Transport System (ETS) does NOT pump protons across the inner mitochondrial membrane?
- AComplex I (NADH dehydrogenase)
- BComplex II (Succinate dehydrogenase)
- CComplex III (Cytochrome bc₁ complex)
- DComplex IV (Cytochrome c oxidase)
✓ Correct answer: B
Want the full step-by-step reasoning?