Physiology False regarding physiology of cobalamin absorption and metabolism A Cobalamin undergoes enterohepatic circulation in humans B After cobalamin-intrinsic factor complex enters the ileal cell, cobalamin appears in portal circulation after a delay of about 6 hours. C Absorption of cobalamin occurs by active process in ileum only D Adocobalamin is cofactor for methylmalonyl coA mutase and methylcobalamin is a co factor for methionine synthase 💡 Explanation False regarding physiology of cobalamin absorption and metabolism ✓ Correct Answer: C. Absorption of cobalamin occurs by active process in ileum only