Carbohydrates
- molecules composed of carbon, hydrogen and oxygen
- referred to as sugars
- C6H12O6
Lipids
- molecules composed of carbon, hydrogen and oxygen
- lipids include steroids, waxes, and fat
- the enzyme lipase breaks down fats into falty acids and glycerol in the human digestive system
Protein
- proteins are composed of amino acidswhich contain carbon, hydrogen, oxygen and nitrogen atoms
- amino acids also contain sulfur phosphorous, iron and copper
Nucleic Acids
- large molecules
- composed of smaller units called nucleotides
- live organisms have 2 important nucleic acids DNA or RNA
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