Non-polar covalent bonds result when the sharing is equal or the molecule is symmetrical, thus canceling the polarity.    e.g. CO2, long chain hydrocarbons Hydrophobic – “water fearing” – repels water and orients away from water and aqueous solutions. The hydrophilic and hydrophobic nature of proteins and other molecules plays a large role in the conformation (shape) and position in cell membranes and other structures, as well as their functions. Interactions form between molecules and groups of like polarity or non- polarity.