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Biochemistry 11

A 6-month-old boy is brought in by his mother to the pediatrician for evaluation of new onset vomiting. The mother states that the infant is vomiting more than usual for the past 2 weeks, ever since she introduced apple juice to his diet. The infant was born healthy and at term with no complications. The mother had routine prenatal care throughout the pregnancy. Physical examination reveals an irritable infant with diffuse jaundice. Laboratory tests are unremarkable with the exception of hypoglycemia.

Which of the following enzymes is most likely affected?

  • A) Aldolase B
  • B) Fructokinase
  • C) Galactokinase
  • D) Galactose-1-phosphate uridyltransferase
  • E) Lactase


Karim Zaki


Dr. Ted O'Connell

Last updated

Nov 05, 2022


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