| A | B |
| carbohydrates | composed of carbon, hydrogen, and oxygen (formula: (CH2O)n (n= # of carbon atoms)) |
| polysaccharides | carbohydrates that are made by linking individual sugars together to form long chains |
| starch | a common storage form of glucose composed of long chains made of hundreds of glucose molecules |
| glycogen | longer chains of glucose used for short-term energy storage |
| cellulose | a major component of the cell wall of plants; provides structural support for plants |
| saturated fats | fat that contains no C=C bonds |
| unsaturated fats | fats that have carbon carbon double bonds (C=C) at various points along the fatty acid chain |
| steroid | a class of lipids that includes cholesterol and some hormones |
| lipids | a class of organic macromolecules that difer from other macromolecules in that they don't dissolve in water |
| proteins | organic compounds formed of one or more chains of polypeptides |
| polypeptide | a chain of amino acid |
| collagen | a fibrous protein that forms the matrix of your skin, ligaments, tendons, and bones |
| enzymes | proteins that assist the chemical reactions of metabolism |
| amino acids | the building blocks of proteins |
| nucleic acids | long chains of repeating subunits called nucleotides |
| nucleotide | subunit of nucleic acids consisting of a nitrogenous base, a sugar, and a phophate group |
| DNA (deoxyribonucleic acid) | the nucleic acid that stores hereditary info in your cells |
| RNA (ribonucleic acid) | plays a variety of roles in the process of making proteins |
| ATP (adenosine triophosphate) | the energy currency of the cell |