NEETBotanyRespiration in Plants
Which complex receives reducing equivalents via FADH2 generated during oxidation of succinate?
Options
- AComplex I
- BComplex II
- CComplex III
- DComplex IV
Correct answer
B. Complex II
Step-by-step solution
Electrons from NADH produced in the mitochondrial matrix during citric acid cycle are oxidized by an NADH dehydrogenase (complex I), and electrons are then transferred to ubiquinone located within the inner membrane. Ubiquinone also receives reducing equivalents via FADH2 (complex II) that is generated during oxidation of succinate in the citric acid cycle. The reduced ubiquinone (ubiquinol) is then oxidized with the transfer of electrons to cytochrome c via cytochrome bc 1 complex (complex III). Cytochrome c is a