In the Pathway for Conversion of Phenylalanine to Fumarate and Acetoacetate

question 3

Multiple Choice

In the pathway for conversion of phenylalanine to fumarate and acetoacetate, there are two well-known enzyme defects that cause inheritable metabolic diseases. What are the names of these two diseases?

• A)homocysteinuria and nonketotic hyperglycinemia
• B)phenylketonuria and maple syrup urine disease
• C)alkaptonuria and nonketotic hyperglycinemia
• D)alkaptonuria and phenylketonuria
• E)maple syrup urine disease and homocysteinuria