Question: Problem 5 (19 Points) A Two-year-old Child Was Taken To The Hospital. His Mother Said That He Vomited Frequently, Especially After Feedings. The Child’s Weight And Physical Development Were Below Normal. His Hair, Although Dark, Contained Patches Of White. A Urine Sample Treated With Ferric Chloride (FeC13) Gave A Green Color Characteristic Of The Presence …

Problem 5 (19 points) A two-year-old child was taken to the hospital. His mother said that he vomited frequently, especially after feedings. The child’s weight and physical development were below normal. His hair, although dark, contained patches of white. A urine sample treated with ferric chloride (FeC13) gave a green color characteristic of the presence of phenylpyruvato. Quantitative analysis of urine samples guve the results shown in the table. Concentration (mm) Substance Patient’s urine Normal urine Phenylalanine 7.0 0,01 Phenylpyruvate 4.8 0 Phenyllactate 10.3 0 5A. (2+3) Suggest which enzyme might be deficient in this child. What is a potential treatment? 5B. (4) Why does phenylalanine appear in the urine in large amounts? 5C. (3+3) What is the source of phenylpyruvate and phenyllactate? Why does this pathway (normally not functional) come into play? 5D. (4) What is the full name of this disease?