Human nutrition (calorific values): The approximate heat energy released when the body metabolizes 1 gram of fat is what? Report the standard physiological energy value. Choose the correct option.

Q: Human nutrition (calorific values): The approximate heat energy released when the body metabolizes 1 gram of fat is what? Report the standard physiological energy value. Choose the correct option.

Concept Physiological fuel values: carbohydrates ≈ 4 kcal/g, proteins ≈ 4 kcal/g, fats ≈ 9 kcal/g (≈ 37–38 kJ/g). Alcohol ~7 kcal/g. Final Answer 9 kcal (≈ 38 kJ)

Difficulty: Easy

4 kcal (≈ 17 kJ)
5.5 kcal (≈ 23 kJ)
7 kcal (≈ 29 kJ)
9 kcal (≈ 38 kJ)

Correct Answer: 9 kcal (≈ 38 kJ)

Explanation:

Concept
Physiological fuel values: carbohydrates ≈ 4 kcal/g, proteins ≈ 4 kcal/g, fats ≈ 9 kcal/g (≈ 37–38 kJ/g). Alcohol ~7 kcal/g.

Final Answer
9 kcal (≈ 38 kJ)

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