Intestinal Absorption Details (Archive)
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Q. Which of the following is correct regarding vitamin B-12 absorption in the small intestine?
a
Vitamin B-12 is transported across the apical surface via endocytosis.
b
Vitamin B-12 must be bound to intrinsic factor for its absorption and transport across the apical surface.
c
Vitamin B-12 is transported across the basolateral surface via exocytosis.
d
All of the above.
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