Question

Match List I with List II

Choose the correct answer from the options given below:

• A. A - II, B - I, C - IV, D - III
• B. A - IV, B - III, C - I, D - II
• C. A - IV, B - II, C - I, D - III
• D. A - III, B - I, C - II, D - IV

Hint:

To easily solve: Ascorbic acid (Vitamin C) is famously unstable under heat and moisture, which uniquely matches it with (D - II). Histidine is an amino acid, matching with (A - IV). This isolates option (B) as the correct choice.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Understanding the physiological roles and chemical stabilities of essential nutrients (amino acids, fatty acids, vitamins, and minerals) is fundamental to fish nutrition and feed formulation.

Step 2: Detailed Explanation:
Let us establish the correct matches between List I and List II:
- A. Essential amino acid: Histidine (IV) is one of the ten essential amino acids that must be supplied in fish feed.
- B. Highly unsaturated fatty acid (HUFA): Docosahexaenoic acid (DHA, 22:6n-3) (III) is an essential highly unsaturated fatty acid critical for marine larvae and broodstock.
- C. Involved in energy transformation: Phosphorus (I) is a key component of ADP and ATP, which are the main molecules responsible for cellular energy storage and transformation.
- D. Excess amount is added in the diet due to its instability: Ascorbic acid (Vitamin C) (II) is highly heat-sensitive and unstable during feed processing (extrusion/pelleting), so excess amounts (overages) or stabilized forms are formulated to ensure adequate levels in the final product.
Therefore, the correct match is: A - IV, B - III, C - I, D - II.

Step 3: Final Answer:
This sequence of matches corresponds to option (B).