thermodynamics: We never lose or gain energy. Just change form and location. * 3 stages of extracting energy from food: * Digestion, absorption, and transportation. * Breaks food down (Simple sugars, fatty acids, monoglycerides) * System transports these nutrients to tissue throughout the body * Breakdown of many small molecules to a few key metabolites. * Inside cells, chemical reactions convert simple sugars, fatty acids, glycerol, and amino acids into a few…
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