NTA Abhyas NEET2020BotanyRespiration in PlantsPractice
The oxidative decarboxylation occurs in the step
Options
- AOxalosuccinate → α-ketoglutarate
- BAcetyl Co-A → Citrate
- Cα -ketoglutarate → Succinyl Co-A
- DOxaloacetate → Citrate
Correct answer
C. α -ketoglutarate → Succinyl Co-A
Step-by-step solution
α-ketoglutarate undergoes simultaneous dehydrogenation and decarboxylation in the presence of enzyme α-ketoglutarate dehydrogenase complex. This enzyme complex contains TPP, Lipoic Acid, Mg 2+ , and trans-succinylase. NAD + and CoA are required. The products formed are 4-carbon compound succinyl CoA, NADH 2, and CO 2 .