JEE Main · 2022 · 26 Jun 2022 · Shift 2 · Biomolecules

Which one of the following is a water soluble vitamin, that is not excreted easily?

(A)Vitamin $B_{2}$
(B)Vitamin $B_{1}$
(C)Vitamin $B_{6}$
(D)Vitamin $B_{12}$ ✓ Correct

Answer: (D)

Solution

Vitamin B₁₂ (cobalamin) is a water-soluble vitamin that is stored in the liver and not easily excreted. Unlike other water-soluble vitamins that are readily excreted in urine, B₁₂ has a long biological half-life and significant body stores. This is due to its complex structure containing cobalt and its specific absorption and storage mechanisms.

JEE Main · 2022 · 26 Jun 2022 · Shift 2 · Single correct option

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