Differentiate between caloric fuel value and physiological fuel valve.

Explanation

### Step-by-Step Solution:

1. **Definition of Caloric Fuel Value**:
- The caloric fuel value refers to the amount of energy released when a substance is completely burned in a controlled environment, specifically using a device known as a bomb calorimeter. This measurement reflects the total energy content of the substance.

2. **Measurement of Caloric Fuel Value**:
- For example, when 1 gram of glucose is burned in a bomb calorimeter, it releases approximately 4.1 kilocalories of energy. This value indicates how much energy can be obtained from the substance when it is combusted.

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