NTA Abhyas NEET2020BotanyRespiration in PlantsPractice
In which of the following reaction substrate-level phosphorylation occurs during respiration?
Options
- ACitric acid → α -ketoglutaric acid
- BMalic acid → oxaloacetic acid
- Cα -ketoglutaric acid → Succinyl-CoA
- DSuccinyl-CoA → Succinic acid
Correct answer
D. Succinyl-CoA → Succinic acid
Step-by-step solution
Substrate-level phosphorylation is the direct synthesis of ATP in the reaction mechanism, also known as transphosphorylation. In Kreb's cycle during conversion of succinyl CoA to succinic acid a molecule of GTP is synthesized. In a coupled reaction GTP is converted to GDP with the simultaneous synthesis of ATP from ADP.