Question

Fat soluble vitamins are ________

(A) Vitamin A

(B) Vitamin C

(C) Vitamin D

(D) Vitamin K

Choose the correct answer from the options given below:

• A. (A), (B) and (D) only.
• B. (A), (C) and (D) only.
• C. (A), (B), (C) and (D).
• D. (B), (C) and (D) only.

Hint:

Remember the classic mnemonic for fat-soluble vitamins: ADEK (Vitamins A, D, E, and K). All other vitamins (Vitamin C and the Vitamin B complex) are water-soluble.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Vitamins are organic compounds required in small quantities for normal metabolism and health.
They are classified into two groups based on their solubility: fat-soluble and water-soluble.
Detailed Explanation:
Let us evaluate the solubility of the listed vitamins:
- Vitamin A (Retinol) (A): A lipid-soluble compound essential for vision and immune function. It is fat-soluble.
- Vitamin C (Ascorbic Acid) (B): A water-soluble antioxidant. It is excreted in urine and is not stored in the body's fat tissues. It is water-soluble.
- Vitamin D (Calciferol) (C): A secosteroid essential for calcium absorption. It is fat-soluble.
- Vitamin K (Phylloquinone/Menaquinone) (D): Essential for blood coagulation proteins. It is fat-soluble.
Therefore, the fat-soluble vitamins in this list are (A), (C), and (D).

Step 2: Final Answer:
The fat-soluble vitamins are Vitamin A, Vitamin D, and Vitamin K, corresponding to option (2).