<prompt> Cystinuria all of the following amino acids are excreted, except:CystineOrnithineLeucineArginine  <response>: Ref. Textbook of Biochemistry for Medical Students. Page. 283 Cystinuria is an inherited metabolic disorder characterized by the abnormal movement transport in the intestines and kidneys, of certain organic chemical compounds amino acids.These include cystine, lysine, arginine, and ornithine. Excessive amounts of undissolved cystine in the urine cystinuria cause the formation of stones calculi in the kidneySubtypes of cystinuria Type I cystinuria, there is a defect in the active transport of cystine and the amino acids dibasic lysine, arginine, and ornithine in the kidneys and small intestine.Type II cystinuria, cystine and lysine transport is severely impaired in the kidneys and only somewhat impaired in the intestinesType III cystinuria, kidney transport of cystine and lysine is defective; intestinal transport is normal 