Theory of Atomic and Molecular Orbitals Molecular Orbital Theory Linear Combination of Atomic Orbitals and Valence Bond Theory Resonance Structures Sigma Bonds and Pi Bonds Electrovalent Bond Covalent Bond Van Der Waals Force and Metallic Bond Molecular Geometry and Shape of Orbitals Hybridization of Atomic Orbitals and Vsepr Theory Protein Folding Protein Denaturation Molecular Chaperones Molecular Forces in Relation to Protein Structure Helices And Turns Protein - Protein Interactions Protein-Dna Interaction Dna-Drug Interactions, Metalloproteins and Protein - Ligand Interactions Interaction of Protein With Lipids and Carbohydrates Pi Pi Interaction and C-H Pi Interaction Ultraviolet-Visible Spectroscopy Infrared Spectroscopy Nuclear Magnetic Resonance Spectroscopy Circular Dichroism Spectroscopy