This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kerbs Cycle, Subject name: Biochemistry
a keloglutarate dehydrogenase is inhibited by - 
Select and explain. 
A. Fluoride, B. Fluoroacetate, C. Arsenite, D. Iodoacetate
C: Arsenite
Answer: C: Arsenite 
Explanation: Ans. is 'c' i.e., ArseniteIn glycolysiso Fluoride inhibitso Iodoacetate inhibitso Arsenite inhibits---EnolaseGlyceroldehyde 3-phosphate dehydrogenase.Phosphoglycerate kinaseIn TCA cycleo Fluoroacetate inhibits aconitase non-competitively.o Arsenite inhibits a-ketoglutarate dehydrogenase non-competitively.o Malonate inhibits succinate dehydrogenase competitively.