Proteins: founds in meats, fish, dairy and beans, collagen, keratin and enzymes that catalyze reactions in the cells are examples, Made up of amino acids, Carbohydrates: starches and sugars, the sugar glucose is in this category, a quick source of energy, Lipids: includes fats and oils, make up most of the cell membrane, stored energy, , Nucleic Acids: DNA and RNA, Hold the instructions for your traits, made up of nucleotides,

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