Phenylalanine is degraded into
Fumarate and succinate
Fumarate and acetoacetate
Fumarate and Malate
Fumarate and pyruvate
Phenylalanine is first conveed to tyrosine (For Subsequent metabolism of phenylalanine and tyrosine See att. Treasure. Hereditary tyrosinemia type I (Hepatorenal tyrosinemia) is due to deficiency of the enzyme fumaryl acetoacetate hydrolase (fumarylacetoacetase). Remember the enzyme deficiency - fumarylacetoacetase. That will help you to remember the end products - Fumarate and acetoacetate. Phenylalanine & tyrosine are both glucogenic and ketogenic. Fumarate is glucogenic while acetoacetate is ketogenic.
Phenylalanine and Tyrosine metabolism Detail