This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Proteins and Amino Acids, Subject name: Biochemistry
Glucogenic aminoacids give rise to all of the following intermediates of citric acid cycle except- 
Select and explain. 
A. Isocitrate, B. a ketoglutarate, C. Succinyl CoA, D. Fumarates
A: Isocitrate
Answer: A: Isocitrate 
Explanation: Ans. is 'a' i.e., IsocitrateGlucogenic amino acids Component of TCA cycle producedHistidine, proline, glutamine, arginineGlutamatea-ketogiutarateIsoleucine, methioniney valine Succinyl CoATyrosine, phenylalanine FumarateTryptophanAlaninePyruvateHydroxyproline, serine, cysteine, threonine, glycine Pyruvate