Question

Which of the following substance requires castle's intrinsic factor secreted by the stomach for absorption in the small intestine?

• A. Amino acids
• B. Water
• C. Vitamin $C$
• D. Vitamin $B_{12}$

Answer 1

The correct option is D Vitamin $B_{12}$

Intrinsic factors which are released by the stomach are used in the ileum of the small intestine for the absorption of vitamin $B_{12}$. These are majorly made up of glycoproteins.

So the correct answer is option D.