NEETBotanyRespiration in Plants
Where are the electrons from NADH transferred to after being oxidized by NADH dehydrogenase?
Options
- AComplex II
- BCytochrome c
- CUbiquinone
- DCytochrome bc1 complex
Correct answer
C. Ubiquinone
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