starving person will first use

Options

A. fats
B. Glycogen
C. Blood
D. Muscle protein

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks what a starving person will first utilize for energy. This involves understanding the body's energy reserves.

2. **Identifying Energy Reserves**: The human body stores energy in different forms, primarily as glycogen, fats, and proteins. Glycogen is a polysaccharide that serves as a form of energy storage in animals.

3. **Location of Glycogen Storage**: Glycogen is primarily stored in the liver and muscles. When a person is starving, the body will first tap into these glycogen reserves.

4. **Utilization of Glycogen**: During the initial stages of starvation, the body will break down glycogen into glucose, which is then used for energy. This process is crucial as glucose is a primary energy source for cells, especially for the brain.

5. **Exhaustion of Glycogen**: Once the glycogen stores are depleted, the body will then turn to other energy sources, primarily fats and proteins. Fats are broken down into fatty acids, while proteins are broken down into amino acids.

6. **Conclusion**: Therefore, the first energy source that a starving person will use is glycogen.

**Final Answer**: A starving person will first use glycogen.

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