Biochemistry Familial fructokinase deficiency causes no symptoms because: A Hexokinase can phosphorylate fructose B Liver aldolase can metabolize it C Excess fructose does not escape into the urine D Excess fructose is excreted through feces 💡 Explanation Familial fructokinase deficiency causes no symptoms because: ✓ Correct Answer: A. Hexokinase can phosphorylate fructose