The calrofic value is maximum in case of

Options

A. Milk
B. Proteins
C. Mineral
D. Carbohydrates

Answer

To solve the question regarding which biomolecule has the maximum calorific value, we can analyze the calorific values of the given options: milk, protein, mineral, and carbohydrate.

### Step-by-Step Solution:

1. **Understanding Calorific Value**: Calorific value refers to the amount of energy produced when a substance is completely burned. It is usually measured in kilocalories (kcal) or kilojoules (kJ).

2. **Analyzing the Options**:
- **Milk**: Milk contains carbohydrates (lactose), proteins, and fats. Its calorific value is moderate due to the presence of these macronutrients.
- **Protein**: Proteins provide energy, but their primary role is in building and repairing tissues. The calorific value of proteins is lower than that of carbohydrates.
- **Minerals**: Minerals do not provide energy; they are essential for various bodily functions but have no calorific value.
- **Carbohydrates**: Carbohydrates are the body's primary source of energy. They have a high calorific value, typically around 4 kcal/g.

3. **Comparing Calorific Values**:
- Carbohydrates generally provide more energy per gram compared to proteins and fats.
- The calorific value of carbohydrates is higher than that of proteins and significantly higher than that of minerals.

4. **Conclusion**: Based on the analysis, carbohydrates provide the maximum calorific value among the given options.

### Final Answer:
The calorific value is maximum in the case of **Carbohydrates**.