JEE Main · 2022 · Shift-IImediumBIO-134

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

Biomolecules · Class 12 · JEE Main Previous Year Question

Question

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

Options
  1. a

    Vitamin B2\text{B}_2

  2. b

    Vitamin B1\text{B}_1

  3. c

    Vitamin B6\text{B}_6

  4. d

    Vitamin B12\text{B}_{12}

Correct Answerd

Vitamin B12\text{B}_{12}

Detailed Solution

Step 1: Identifying Water Soluble Vitamins — All B-complex vitamins and vitamin C are water-soluble.

Step 2: Excretion vs. Storage — Most water-soluble vitamins are excreted in urine if consumed in excess, preventing accumulation in the body.

Step 3: Identifying the Exception — Vitamin B12\text{B}_{12} (cobalamin) is a notable exception that is water-soluble but can be stored in the liver for several years. Correct option is (d).

Key Point: This is why clinical signs of B12\text{B}_{12} deficiency may take a long time to develop.

Practice this question with progress tracking

Want timed practice with adaptive difficulty? Solve this question (and hundreds more from Biomolecules) inside The Crucible, our adaptive practice platform.

Which of the following is a water soluble vitamin, that is not excreted easily? (JEE Main 2022) | Canvas Classes