| A | B |
| Electronegativity | An atom's ability to attract electrons |
| Polar Covalent Bond | Electrons shared unequally; hydrophilic |
| Non polar Covalent Bond | Electrons shared equally; hydrophobic |
| Ionic Bond | Electrons completely transferred from one atom to another |
| Valence Shell | Outermost orbital where electrons are found |
| Hydrogen Bond | Attraction between polar molecules |
| Denature | Unfolding of proteins by disrupting hydrogen bonds |
| Cohesion | property of water; "sticks" to itself because of hydrogen bonds |
| Adhesion | property of water; "sticks" to other materials because of hydrogen bonds |
| High Specific Heat | property of water; can absorb lots of energy before changing state |
| Surface Tension | property of water; caused by the attraction of the top layer of molecules in water to the rest of the liquid |
| Monomer | single unit |
| Dimer | double unit |
| Polymer | 3 or more units |
| Dehydration | reaction that links monomers by removing a water molecule |
| Hydrolysis | reaction that breaks down polymers by splitting a water molecule |
| Carbohydrate | CHO; energy storage and structure |
| Saccharide | carbohydrate monomer |
| Lipid | CHO; energy storage, insulation, communication |
| Hydrophilic | Attracted to water |
| Hydrophobic | Repelled from water |
| Fatty Acid | lipid monomer |
| Phospholipid | what membranes are made of |
| Hormone | 4-ringed lipid used for communication |
| Protein | CHONS; movement, communication, transport, structure, enzymes, etc |
| Amino Acid | monomer of proteins |
| Peptide | bond between amino acids |
| Enzyme | protein that speeds up reactions |
| Nucleic Acid | CHONP; genetic material |
| Nucleotide | monomer of nucleic acids |