Question

Match the items of List-I with List-II and choose the correct option:
List-I (Food Group): (a) Protein, (b) Carbohydrates, (c) Fats, (d) Roughage
List-II (Functions): (i) Main sources of energy, (ii) Negligible energy source, (iii) Repair body cells, (iv) Transporting fat-soluble vitamins

• A. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
• B. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
• C. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
• D. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

Hint:

When matching, find the most certain pair first (like Carbohydrates-Energy) to eliminate incorrect options quickly.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Nutrients are divided into macro and micro categories, each serving a primary biological function within the human body.
Step 2: Detailed Explanation:

1. Protein (a): Primarily responsible for growth and the repair of body cells (iii).
2. Carbohydrates (b): The body's main source of energy (i), providing glucose.
3. Fats (c): Essential for transporting fat-soluble vitamins (iv) (A, D, E, K) and long-term energy storage.
4. Roughage (d): Fiber is a non-digestible carbohydrate; it provides negligible energy (ii) but is crucial for digestion.
Step 3: Final Answer: (D) (iii), (i), (iv), (ii).

Answer 2

This is a matching question, so the fastest way to check each option is to independently establish, from what we know about each food group's function, the single correct match for every letter, and then see which option lists all four correctly at once.

Building the correct matches first: Carbohydrates are broken down into glucose and are the body's principal energy source, aligning with function (i), main source of energy. Fats, besides storing energy, are unique among these groups in carrying the fat-soluble vitamins A, D, E, and K through the body, aligning with function (iv). Protein's defining role is building and repairing tissue, aligning with function (iii). Roughage (dietary fibre) is not digested or absorbed for energy at all, aligning with function (ii), negligible energy source. So the only correct set of matches is (a) Protein-(iii), (b) Carbohydrates-(i), (c) Fats-(iv), (d) Roughage-(ii).

1. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv): This assigns energy production to Protein and cell repair to Carbohydrates, both the reverse of their actual roles, so this option is incorrect.
2. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii): This assigns vitamin transport to Protein (that is specifically a fat function) and cell repair to Carbohydrates (that is specifically a protein function), so this option is also incorrect.
3. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii): Protein-(iii) and Roughage-(ii) are correct here, but Carbohydrates is matched to (iv) vitamin transport, which is a fat-specific role, and Fats is matched to (i) main energy source, which is carbohydrates' role, so the middle two matches are swapped and this option is incorrect.
4. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii): This matches Protein-(iii), Carbohydrates-(i), Fats-(iv), and Roughage-(ii) exactly as established above, with every pairing correct.

Only the fourth option reproduces all four independently-derived matches without any swap.

Therefore, the correct answer is (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii).