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are chains of amino acid molecules that are used by every cell to make other usable protiens
nonessential amino acids
amino acids that can be synthesized by the body and do not have to be obtained from the diet
combinations of two incomplete protiens that provide all the essential amino acids and make a complete protien
ATP the substance that provides energy to cells and converts oxygen to carbon dioxide, a waste product we breathe out
fats or lipids
macronutrients used to produce energy, material in the sebaceous glands that lubriacte the skin
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