<prompt> Enzyme responsible for transfer of aminogroups from one aminoacid to a keto acid is-TransaminaseTransketolaseKetoisomeraseAmine synthetase  <response>: Ans. is a i.e., TransaminaseTransaminases Transaminases belong to transferase class of enzymes. They transfer amino group from an aminoacid to an a ketoacid, converting the aminoacid to a ketoacid. The ketoacid which accepts the aminogroup becomes an aminoacidAminoacid 1 a Ketoacid 1 --- a Ketoacid 2 Aminoacid 2Examples Aspartate TransaminaseAST or Serum Glutamate Oxaloacetate TransaminaseSGOT Aspartate, an aminoacid reacts with a ketoacid, a Ketoglutarate in the presence of transaminase. Aspartate donates its aminogroup to a Ketoglutarate, converting a Ketoglutarate into an aminoacid glutamate. In this process aspartate becomes a ketoacid, which is oxaloacetate.Aspartate a ketoglutarate---ASTSGOTOxaloacetate Glutamate Alanine Transaminase ALT or Serum Glutamate pyruvate TransaminaseSGPT Alanine, an aminoacid reacts with a ketoacid, a Ketoglutarate in the presence of a transaminase. Alanine donates its aminogroup to a Ketoglutarate, converting a Ketoglutarate into an aminoacid glutamate. In this process alanine becomes a ketoacid, which is Pyruvate.Alanine a ketoglutarate---ALTSGPTGlutamate Pyruvate These transaminases need Pyridoxal phosphate as coenzyme 