Food reserve in muscles is

Options

A. Glycogen
B. Fat
C. Protein
D. Phosphogen.

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks about the food reserve in muscles.

2. **Review the Options**: The options provided are glycogen, fat, protein, and phosphogen.

3. **Understand Glycogen**: Glycogen is a polysaccharide that serves as a form of stored glucose in animals. It is often referred to as "animal starch."

4. **Location of Glycogen Storage**: Glycogen is primarily stored in the liver and muscles. This makes it a significant energy reserve for muscle activity.

5. **Conversion of Glucose**: When there is an excess of glucose in the body, it is converted into glycogen for storage. This process is crucial for maintaining energy levels, especially during periods of fasting or intense physical activity.

6. **Role of Glycogen in Muscles**: During exercise or times of energy demand, glycogen is broken down into glucose, which is then utilized by muscles for energy.

7. **Eliminate Other Options**:
- **Fat**: While fat is an energy source, it is primarily stored in adipose tissue, not directly in muscles.
- **Protein**: Proteins are not primarily used as a food reserve; they serve structural and functional roles in the body.
- **Phosphogen**: Phosphagens are high-energy compounds that provide quick bursts of energy but are not considered a food reserve.

8. **Conclusion**: Based on the above analysis, the food reserve in muscles is glycogen.

**Final Answer**: Glycogen

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