Absorption of which of the following requires the presence of intrinsic factor?
A) vitamin B6
B) vitamin D
C) vitamin B12
D) vitamin A
E) vitamin K

Question

Absorption of which of the following requires the presence of intrinsic factor?​
A) ​vitamin B6
B) ​vitamin D
C) ​vitamin B12
D) ​vitamin A
E) ​vitamin K

Quizplus · Accepted Answer

Absorption of vitamin B12 requires the presence of intrinsic factor, which is a protein produced by the stomach that facilitates the absorption of vitamin B12 in the small intestine. Vitamin B6, vitamin D, vitamin A, and vitamin K can be absorbed without intrinsic factor.

Absorption of Which of the Following Requires the Presence of Intrinsic