This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Substrate level phosphorylation is seen in the conversion of 
Select and explain. 
A. Acetoacetate to α-keto glutarate, B. Succinyl CoA to Succinate, C. Fumarate to malate, D. Succinate to fumarate
B: Succinyl CoA to Succinate
Answer: B: Succinyl CoA to Succinate 
Explanation: Substrate level phosphorylation

It is the production of ATP (or GTP) at substrate level without participation of electron transport chain.
It occurs in glycolysis and citric acid cycle, at following steps :-