1. Amphipathic: or amphiphilic molecules have both a hydrophilic (Water-loving) and hydrophobic (water-hating) ends. An example is phospholipid molecules that have a hydrophilic head and hydrophobic tail. This arrangement of hydrophilic and hydrophobic ends means that when dissolved in water, such amphipathic molecules will orient themselves (with hydrophilic ends inside the water and hydrophobic ends sticking out in the atmosphere). This will enable easy deposition of monomolecular and multimolecular layers on chosen substrate surfaces.
2. Macromolecules: composed of a large number (could be thousands) of smaller molecules (called monomers). An example is carbohydrate molecules that are composed of a large number of monosaccharide molecules.
3. Organic molecule: any molecule that contains carbon atoms is termed organic molecules.
4. Dehydration reaction: dehydration synthesis reaction results in macromolecule formation along with release of a water molecule.
5. Condensation reaction: another macromolecule formation reaction. It is opposite of a hydrolysis reaction (which destroys macromolecules).
6. tertiary structure: refers to 3-D structure of proteins.
7. Functional group: a group of atoms or bonds, within a molecule, that causes characteristic chemical reactions of the molecule. Examples are hydroxyl group, amino group, alkyl group, etc.
Hope this helps.