Question

what is food energy please solve this question​

Answer 1

Answer:

The average values of energy are expressed as the number of calories per 1 gram of the macronutrient. The Atwater general factor system includes energy values of 4 kcal per gram (kcal/g) (17 kJ/g) for protein, 4 kcal/g for carbohydrates and 9 kcal/g (37 kJ/g) for fat.

Answer 2

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Food energy is chemical energy that animals (including humans) derive from their food and molecular oxygen through the process of cellular respiration. Cellular respiration involves either the process of joining oxygen from air with the molecules of food or the process of reorganizing the atoms within the molecules.