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Which Water-Soluble Vitamin Must First Be Bound to the Intrinsic

Question 68

Multiple Choice

Which water-soluble vitamin must first be bound to the intrinsic factor secreted by the gastric mucosa before it can be absorbed by the intestinal epithelium?


A) vitamin B2 (riboflavin)
B) vitamin C (ascorbic acid)
C) vitamin B12 (cobalamin)
D) vitamin B5 (pantothenic acid)
E) vitamin B6 (pyridoxine)

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